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PCC-IV Instruction Manual (Rev. 0.1)

Page 6-1

Section 6

– Blockware Functions

Technical Reference

Section 6: Blockware Functions – Technical Reference

Table of Contents

Code Description

Page Code Description

Page

[A0] Analog Constant, 0.00% ..................... 4

[A100] Analog Constant, 100.00% ............. 4

[AIN] Analog Input ...................................... 4

[RAIN] (Modbus) Remote Analog Input ..... 5

F11

[DUAL] Dual Range Flow Transmitter

Selector-Scaler ..................................... 6

F22

[BEFF] Boiler Efficiency ............................. 7

F31

[HSEL] High Select .................................... 8

F32

[LSEL] Low Select ..................................... 8

F33

[MSEL] Median Selector ............................ 9

F34

[ASW] Analog Switch ................................. 9

F35

[H/LLIM] High / Low Signal Limiter ........... 10

F36

[RLIM] Rate Limiter .................................. 10

F38

[FPT/H] Front Panel Adjustable Track / Hold

........................................................... 11

F41

[F(T)] Function of Time Generator ........... 13

F42

[F(X)] Function of X Generator with Learn

Mode................................................... 15

F43

[L/L] Lead

– Lag with Gain (Dynamic

Compensation) ................................... 19

F45

[SCALE] Signal Scaling ........................... 19

F51

[AB/C] ( A*B ) / C Multiply - Divide ........ 20

F52

[WSUM] Weighted Sum .......................... 21

F53

[INV] Invert ............................................... 22

F54

[CON] Analog Constant ........................... 22

F55

[FPCON] Front Panel Adjustable Constant

........................................................... 22

F56

[DEV] Deviation Calculation (for Bargraph

Displays) ............................................. 23

F58

[COUNT] Pulse Counter .......................... 23

F59

[SQRT] Square Root ................................ 24

F60

[ABS] Absolute Value .............................. 24

F71

[PID] PID Control (with GAP and

ADAPTIVE gain) ................................. 24

F81

[AOUT] Analog (4-20 mA) Output ............ 28

F83

[TOUT] Triac Output ................................ 28

F90

[D0] Discrete 0 Constant .......................... 34

F91

[D1] Discrete 1 Constant .......................... 34

F92

[DIN] Discrete Input .................................. 34

F93

[DCON] Discrete Constant ....................... 35

F96

[PANEL] Front Panel Display ................... 35

F97

[RDIN] (MODBUS) Remote Discrete Input

............................................................ 36

F98

[PB] Pushbutton ....................................... 37

F99

[LED] LED ................................................ 37

F101

[HIALM] High Alarm ................................. 38

F102

[LOALM] Low Alarm ................................. 40

F103

[DEVALM] Deviation Alarm ...................... 40

F104

[RATE] Rate of Change Alarm ................. 42

F107

[LOGIC] User Defined Logic .................... 43

F110

[XOR] Exclusive OR Logic ....................... 43

F111

[NOT] NOT Logic ..................................... 44

F112

[F/F] Flip Flop Logic ................................. 44

F116

[TOT] Totalizer (Integrator with Pulse

Output) ................................................ 45

F117

[DSW] Discrete Switch ............................. 45

F118

[DAETDR] Delay After Energize Time Delay

Relay (On Delay) ................................ 46

F119

[DADTDR] Delay After De-energize Time

Delay Relay (Off Delay) ...................... 46

F120

[INTTDR] Interval Time Delay Relay (Non-

Retriggerable One Shot) ..................... 47

F121

[DAE/DAD] Delay After Energize / Delay

After De-energize Timer ...................... 47

F122

[REPTDR] Repeat Time Delay Relay ....... 48

F123

[COMM] MODBUS Communications Link

Control ................................................ 49

F125

[ROUT] Relay Output ............................... 49

F126

[DOUT] Discrete Output (Open Collector -

Sinking) ............................................... 50

F127

[NOP] No Operation Dummy Function ..... 50

Note: See the ZP Oxygen Analyzer Instruction Manual for Function F6 [ZAIN]

Summary of Contents for PCC-IV

Page 1: ...PCC IV Controller Instruction Manual Revision 0 2 Preferred Instruments A Division of Preferred Utilities Mfg Corp 31 35 South St Danbury CT 06810 Ph 203 743 6741 Fax 203 798 7313 preferred mfg com ...

Page 2: ...al and are familiar with all aspects of the process being controlled should attempt to re configure the blockware control logic contained in the memory of a PCC IV Controller VERIFY THAT THE PROCESS BEING CONTROLLED HAS BEEN SAFELY SECURED ISOLATED OR BYPASSED AS REQUIRED BY THE SITE CONDITIONS BEFORE MODIFYING ANY OF THE BLOCKWARE DATA IN ANY BLOCK IN THE PCC IV MEMORY FAILURE TO DO SO CAN RESULT...

Page 3: ...PCC IV Instruction Manual rev 0 2 Page iii ...

Page 4: ...PCC IV Instruction Manual rev 0 2 Page iv ...

Page 5: ...PCC IV Instruction Manual rev 0 2 Page v ...

Page 6: ...PCC IV Instruction Manual rev 0 2 Page vi ...

Page 7: ...1 10 20 2017 Added PUMC logo to each page Minor grammar format changes throughout Corrected error in description of alarm annunciator screen Revision 0 2 01 22 2018 Updated Section 5 to latest PC4_Draw Stated that 24 Vdc power supply wiring should be shielded twisted pair ...

Page 8: ...ider further that there are option cards which can perform the following Control the temperature of oxygen sensors and convert their millivolt outputs to signals useful for control and or monitoring applications Accept both analog and digital signals as inputs and outputs in many combinations Accept up to 6 isolated analog inputs control up to 5 triac device pairs or control up to 6 relay outputs ...

Page 9: ...tiple F x 5 Learn Mode 5 Boiler Efficiency 5 Triac Output for Electric Actuators option cards 5 Service Manual and Block Forcing 5 Steam Flow Pressure Compensation 5 Gas Flow Pressure Temperature Compensation 5 High Temperature Hot Water HTHW BTU Hr Computation 5 Drum Level Pressure Vs Density Compensation 6 Oxygen Sensor Control Signal Conversion option card 6 Relay Output Channels 6 Flow Totaliz...

Page 10: ...ows front panel parameter configuration without the need for a special configurator or laptop computer Note two standard micro USB ports allows laptop blockware configuration Ten point first in first out Alarming Allows the operator to view the order of alarms and acknowledge each separately Learn Function Allows for easy entry of complex function curves without prerequisite data collection Indust...

Page 11: ...tional analog functions but also many discrete logical and timing functions The controller can handle many tasks that would normally require the use of a PLC and the use of option cards permits expansion of those discrete I O capabilities up to 13 DI and 10 RO DO Discrete functions can also be readily integrated with analog functions which has been traditionally difficult to accomplish with a PLC ...

Page 12: ...d and are described in Section 6 Any Function Any Block Each block is assigned a Function type during configuration Any Function type can be used in any block number The block number only determines the order in which the blocks are calculated In the example below at left Block number 22 is not being used so it has the default NOP or No OPeration Function in it At right Block 22 was changed from a...

Page 13: ...ature percent oxygen in the flue gas and percent firing rate for radiation loss determination to evaluate the efficiency This function is not only useful for establishing on line fired equipment efficiency but also allows determination of changes in that efficiency and therefore the potential for maintenance Triac Output for Electric Actuators option cards Many systems utilize electric actuators w...

Page 14: ...hen equipped with the appropriate option card the PCC IV performs the same function as the manufacture s electronics package while coincidentally allowing for the automatic integration of that variable into any planned control or monitoring strategy Relay Output Channels The PCC IV can be equipped with up to 6 relay outputs The relay contacts are rated for up to 8A inductive loads and include inte...

Page 15: ...list above Option Card Slot Number 3 0 none S TOUT 1 pair Triac Outputs 2A 24 120 VAC Option Board Input Output Expansion Examples PCC IV Model Number 4 20 mA 0 5 VDC AIN 4 20 mA AOUT 120 VAC DIN 8A relay ROUT 2A Triac pairs TOUT 200 mA sinking DOUT Total I O PCC IV 0 0 0 0 5 2 5 2 0 4 18 PCC IV A A 0 0 15 2 5 2 0 4 28 PCC IV F F 0 0 11 6 5 2 0 4 28 PCC IV J J 0 0 5 2 13 6 0 4 30 PCC IV G G S 0 9 ...

Page 16: ...nector 92223 14 pt field wiring connector 92076 Slide on jumper 250 ohm R W 2759 006A 08C CPU to case retainer screw 6 32 x 1 2 92707 Cable 9 8 ft USB Extension Cable A Male to A Female 190348 Case for panel mounting with rear cover 190347 panel mounting brackets not included 90134 Case to panel gasket 190347 Panel Mounting Bracket Kit 2 brackets kit 190319 1 pair Triac output option board slot 3 ...

Page 17: ...t 4 user defined configurable buttons Faceplate Splash proof Alarm Annunciator 10 Point First out Time Date Stamped Status Indicators 8 6 Configurable Real time Clock Powered by super cap no batteries keeps time for 8 days after being powered down Electrical Input Power Requirements 24 Vdc 15 450mA 10 5 VA CPU board with faceplate no option boards or field loads See Section 2 to calculate addition...

Page 18: ...d Fuses and Pull ups 9 J Option Board Isolated Neutral Jumpers 10 S Option Board 120 Vac Fuse 10 CPU Board Layout 11 CPU Board Field Wiring Terminals 12 Option Board Field Wiring Terminals 13 Wiring Examples 14 Two Wire 4 20 mA Input Internal 24 Vdc 14 Two Wire 4 20 mA Input External 24 Vdc 14 Four Wire 4 20 mA Input 14 Isolated 4 20 mA Input 15 1 5 Vdc Input 15 0 10 Vdc Input 15 Potentiometer Inp...

Page 19: ...s mounted itself is designed for NEMA 13 minimum protection PCC IV can be installed in more severe environments if the user provides additional protection that is consistent with and or required for the area s rating Ambient Temperature PCC IV is rated for continuous operation over the 32 125 F 0 52 C ambient temperature range without derating A typical PCC IV installation in a control cabinet mou...

Page 20: ...ackets tabs into the slots in the PCC IV case Using a 1 8 Allen wrench tighten each mounting bracket screw against the enclosure Additional Mounting Brackets can be ordered as part number 190347 if the mounting brackets supplied with the PCC IV are lost or damaged PCC IV Dimensions inches Panel Cutout Dimensions and Minimum Spacing inches 3 13 7 50 63 min 1 75 min 3 75 7 75 1 13 1 13 3 5 5 max 88 ...

Page 21: ...hile U refers to the upper row Terminals 1L to 8L 1U to 8U and 29 to 33 accept 24 12 ga wire and should be tightened to 4 5 in lb Terminals 1 to 28 and 40 to 51 accept 22 14 ga wire and should be tightened to 2 2 in lb Wire Type All wiring AC DC and shielded cable should be copper stranded 150 V min and 60 C minimum Shielded Cable All 4 20 mA 0 5 Vdc input and output wiring and 24 Vdc power supply...

Page 22: ... supply connection will be required to power the front panel This may be possible if the USB cable is longer than 3 5 meters 11 3 ft i e a DCS IV with remote front panel Like the CPU board the front panel has redundant power supply ports If a separate power supply connection is necessary move the jumper J9 on the back of the front panel from pins 2 3 to pins 1 2 If in the future a separate power s...

Page 23: ...CC IV BF00 that is configured to use 3 4 20 mA outputs 6 4 20 transmitter inputs 2 relay outputs plus B board 55 mA internal load adds a 285 mA load Therefore a 735 mA minimum power supply is required A safe rule of thumb is 1A for a PCC IV with 3 Option Boards with all 24Vdc field loads in use 4 An external 300 mA fast acting fuse for field 24 Vdc loads is recommended 5 The CPU has a 5 Vdc 50 mA ...

Page 24: ...stor converts a 4 20 mA signal into a 1 5 Vdc signal The G Option Board is used primarily to drive electric actuators with 0 5 Vdc position feedback potentiometers If G board analog inputs will be connected to a 4 20mA signal externally mounted 250 ohm resistors are required Precision 250 0 ohm resistors are available separately as part number 25250 0B25 3 4 CPU Board JP1 jumpers Install a jumper ...

Page 25: ...Isolated Analog Inputs 3 Channels Isolated Ch to Ch and from CPU Signal Common Rev A B Option Board 250 ohm Switches 4 20 mA 0 5Vdc Isolated Analog Inputs 3 Channels Isolated Ch to Ch and from CPU Signal Common AIN ch 3 To Connect 250 ohm Resistor Turn Switch ON AIN ch 1 AIN ch 3 AIN ch 1 To Connect 250 ohm Resistor Turn Switch ON AIN ch 5 AIN ch 1 To Connect 250 ohm Resistor Turn Switch ON ...

Page 26: ...s 2 Channels G Option Board Fuses and Pull ups Combination 0 5Vdc Analog Input 2 Channels Triac Output AC Solid State Switch 2 Pairs 4 Triacs AIN ch 3 To Connect 250 ohm Resistor Turn Switch ON AIN ch 1 AIN ch 1 330k Pull Up Resistor Remove if External Pull Down Resistor or External 250 ohm Resistor is in use AIN ch 2 Fuse for Pair 2 Term 45 46 Fuse for Pair 1 Term 42 43 ...

Page 27: ...on 120 Vac Isolated Discrete Inputs 4 Channels Relay Outputs 8A HP 2 Channels S Option Board 120 Vac Fuse Triac Output AC Solid State Switch 1 Pairs 2 Triacs DIN ch 1 Neutral Neutrals are Isolated ch to ch Neutrals of Selected Channels can be Connected by Installing Jumpers DIN ch 4 Neutral Fuse for Pair 1 Term 30 31 ...

Page 28: ...ndant 24VDC Power Jacks Rear USB Programming Port DCS IV CPU Board 24VDC Power Fuse USB Programming Port Select Jumpers J2 Right pins are 1 3 2 4 Left pins are 3 5 4 6 CPU Board Terminals 1U 8U CPU Board Terminals 1L 8L CPU Board Terminals 1 28 Front USB Programming Port PCC IV Option Board 1 Connector Option Board 2 Connector CPU Board 250 ohm jumpers ...

Page 29: ...17 18 19 20 21 22 23 24 25 26 27 28 1 5 AIN 250 ohm resistor jumpers N 120 Vac 2U 6U 4U 5U 3U 1U 8U 7U 2L 6L 4L 5L 3L 1L 8L 7L COM DOUT DOUT 1 DOUT 2 DOUT 3 DOUT 4 DOUT 24 V AOUT 1 AOUT 1 5 V 24 V AIN 1 AIN 2 AIN 3 AIN 4 AIN 5 24 V 24 V AOUT 2 AOUT 2 0 5 Vdc or 4 20 mA Preferred Instruments Danbury CT PCC Field Wiring label 90133 Option Boards not shown for clarity 120 Vac 22 VA 50 60 Hz ROUT 1 RO...

Page 30: ...air 2 46 46 SC 46 D2 DEC 2 46 H2 AI x 4 DI x 2 47 47 SC 47 NT NEUTRAL 47 N2 48 48 48 5 Vdc 48 H3 AI x 5 AO x 1 DI x 3 49 49 49 AI x 1 49 N3 50 SC 50 50 AI x 2 50 H4 AO x 1 DI x 4 51 SC 51 51 SC 51 N4 Notes PCC IV S Option Board Field Wiring Terminal Numbers Any Combination of the above Option Cards can be used in Option Board Slot 3 Only Slots 1 or 2 x indicates the PC Board Number in the above ch...

Page 31: ...e Transmitter 16 4 20 mA Two Wire Xmtr 4 20 mA Two Wire Xmtr 18 17 24 Vdc SC Signal Common 250 0 ohms JP1 1 Jumper 1 5 Vdc to A D PCC IV Insulate Shield Terminals shown are for AI ch 0 1 16 4 20 mA Two Wire Xmtr 18 17 24 Vdc SC Signal Common 250 0 ohms JP1 1 Jumper 1 5 Vdc to A D PCC IV Insulate Shield Terminals shown are for AI ch 0 1 16 4 20 mA Two Wire Xmtr 20 19 24 Vdc SC Signal Common 250 0 o...

Page 32: ... 5V range instead of the default 1 5V range The External Power Supply and the PCC IV Signal Common must be connected The shield connects to the External Power Supply 4 20 mA Two Wire Xmtr 2 43 2 42 250 0 SW1 2 PCC IV Insulate Shield Terminals shown are for AI ch 2 2 24 Vdc Power Supply 4 20 mA Indicator 4 20 mA Indicator Isolator to A D Isolated ch to ch and from SC 4 20 mA Two Wire Xmtr 2 43 2 42...

Page 33: ... the PCC IV is 800 ohms The shield connects to the Signal Common 15 18 17 5 Vdc SC Signal Common 250 0 ohms JP2 1 Jumper 0 5 Vdc to A D PCC IV Terminals shown are for AI ch 0 1 Potentiometer 100 ohms min 10k ohms max R2 R1 Note R1 R2 are optional external resistors See Pull Up Down Resistors in this section for details Wiper 15 18 17 5 Vdc SC Signal Common 250 0 ohms JP2 1 Jumper 0 5 Vdc to A D PC...

Page 34: ... board An external wire must be run if these isolated Neutrals need to be connected 4L 1L PCC IV Terminals shown are for DI ch 0 1 33 uF 120 33 uF 120 1U Optical Isolator Neutrals from DI ch 0 2 0 5 PCC III 120 Vac Power Supply Neutral AC Grounded Neutral Per NEC Code Field Hot and PCC III Hot can be different phases Neutral 120 Vac Hot to PS xfmr 4L 1L PCC IV Terminals shown are for DI ch 0 1 33 ...

Page 35: ... Output Sinking External 24 Vdc CPU Board Only The same comments noted above apply This example shows an External Power supply being used to power the load The shield connects to the External Power Supply 5 9 24 V PC Power Common PCC IV Terminals shown are for DOUT ch 0 1 10 4 ch 0 2 ch 0 3 ch 0 4 Clamp Diodes Insulate Shield Relay Coil Mount Clamp Diode on Coil to Prevent Electrical Noise NOTE PO...

Page 36: ...llows each Triac to be controlled as a separate Solid State AC Switch The Triacs are protected by surge suppressing capacitors inductors and varistors 6 mA leakage type The Triac Hot and Neutral supply are isolated from the PCC IV 120 Vac Each Triac pair has a separate fuse Loads rated 24 120 Vac and 0 2 Amps are acceptable 29 PCC IV Terminals shown are for TOUT ch 3 1 T1 Increase 24 120 Vac Power...

Page 37: ... CPU board to the option board CPU Terminal 1U is the return path or neutral for all current that enters the CPU 120 Vac discrete input channels Terminals 4L 8L The hots and neutrals of all J option board 120 Vac discrete input channels are isolated from the CPU board line and neutral Each J board input channel is isolated from other J board channels The J board is provided with jumpers to allow c...

Page 38: ...ator D D RS485 Isolated Common 10 16 27 28 12 14 18 20 22 24 26 9 5 Vdc 50 mA 24 Vdc 215 mA Signal Common for AIN ch 0 1 0 5 AOUT ch 0 1 0 2 Power Common for DOUT ch 1 4 To DIN ch 1 3 Ground to Option Cards 1 2 Case Ground No Connection Isolated 120 Vac Discrete Inputs Terminal Numbers 2U 2L and 3L are connected to each other but have no connection to any other PCC IV internals They are provided f...

Page 39: ...ds on the impedance of the field device the desired response time and the acceptable level of error introduced by the resistor Each application should be analyzed separately Example An input for a 1k position feedback pot on an electric actuator with an R1 pull up resistor equal to 330k This combination adds less than 0 05 error and has a 3 sec response time If the pot is wired such that approx 5 ...

Page 40: ...nd RS 485 Commons The shield should be connected to the RS 485 common terminal at the master station At each PCC PLC RS 485 232 converter and any other devices on the network the shields should not be connected to each controller s RS 485 common The shields of the network cables should be wired together to continue the shield to the next controller The single wire i e not part of the twisted pair ...

Page 41: ...ptable ScadaFlex Workstation PCC PCC PCC PCC PCC PCC PCC Star Layout Not Acceptable ScadaFlex Workstation PCC PCC PCC PCC PCC PCC PCC PCC PCC PCC Daisy Chained Bus Layout OK ScadaFlex Workstation PCC PCC PCC PCC PCC PCC PCC Daisy Chained Bus Layout OK ScadaFlex Workstation PCC PCC PCC PCC PCC PCC PCC PCC PCC PCC PCC PCC PCC Daisy Chained Bus Layout OK ScadaFlex Workstation PCC PCC PCC PCC PCC PCC ...

Page 42: ...mation via the front or back micro USB jack on the CPU board The signals are standard USB 2 0 levels and can be directly connected to a standard personal computer USB port There is 1 USB port but 2 physical USB jack locations Jumpers on the CPU board select the front or rear jack The rear jack is used for PCC IV applications and the front jack is used for DCS IV applications To make the front jack...

Page 43: ...stall any option cards Remove all power to the instrument Multiple power sources may be present Remove the front panel from the PCC IV Remove the screw on the top of the front panel Grasp the top corners of the front panel and move it forward away from the case about Move the front panel upwards and away from the case about The front panel should now be free Depress the two retainer clips on each ...

Page 44: ...Front Panel Displays and Soft buttons 3 RUN Light 3 SP Arrow 3 OUT Bargraph 3 Numeric Display 4 Message Display 4 DIS Soft button 4 and Soft buttons 4 and Rate of Change 4 Auto Manual Soft button and Light 5 Auto Manual Example 5 ALARM Light 6 ACK Soft button and the Alarm Annunciator 6 User Defined Soft buttons 6 User Defined Lights 6 Multiple Loops 6 ...

Page 45: ...am turbine throttle valve controller Waste water pH controller Pump and Fan variable speed drive flow pressure controller Batch reactor temperature controller Paper stock consistency controller Chemical additive ratio blending controller Heat treating temperature controller The same physical PCC IV controller hardware is used in every case What differentiates one controller from another is the app...

Page 46: ... Mode indication when both S M and FORCED Modes are active PV Bargraph Typically this bargraph provides a graphical display of the Process Variable PV over a range of from 0 100 Process Variable is control system slang for that specific system condition that the PCC IV is trying to control Put another way if the PCC IV is modulating a steam valve to control the burner fuel oil temperature then the...

Page 47: ... example would be boiler drum steam pressure the variable After scrolling to this display channel with the DIS soft button the numeric display might show 149 for 149 psig while the message display might simultaneously show DRUM PSI Additionally the DIS button can be held down continuously for 3 seconds to enter the Main Menu see Section 4 The operation of the DIS soft button cannot be changed by t...

Page 48: ...logic as follows When AUTO MAN changes from MAN to AUTO display ch 2 typically the PV is automatically selected When AUTO MAN changes from AUTO to MAN display ch 1 typically the OUT is automatically selected However after Auto DIS has changed the display channel the operator can still use DIS soft button to select a different display channel Without Auto DIS the operator would have to first press ...

Page 49: ... to maximum rate but the feedwater pump capacity is inadequate the feedwater pressure drops the drum level drops and the boiler eventually trips due to low low water level After the boiler trips the feedwater pressure returns to normal pressure The displays would respond as follows User Defined Soft buttons These four soft buttons are configured by the blockware designer The purpose and operation ...

Page 50: ...plays DRUM LEVEL in AUTO and FEEDWATER VALVE in MAN AUTO MAN Soft buttons Loop Select Method An alternative method for selecting the currently displayed loop is to use one of two AUTO MAN soft buttons for each loop as the loop select soft button This method is used when there is no Loop soft button If the LEVEL loop is currently being displayed pressing the PSI AUTO MAN soft button would change th...

Page 51: ...Password System 7 Disabling the Password System 8 Browse Blocks Menu 8 General 8 How to use Browse Blocks 9 Navigation 9 Change a Parameter 9 Forcing Block Outputs 9 Utilities Menu 10 Set Clock Time Date Menu 10 Memory Menu 11 Save Config Changes 11 Calibrate I O Menu 11 When is Calibration Required 11 Analog Input Calibration Procedure 12 Analog Output Calibration Procedure 13 Screen Utilities Me...

Page 52: ... purpose and operation of every menu item PC4_Draw PC4_Draw is a CAD based drag and drop style program for Windows 7 thru 10 computers PC4_Draw includes a library with pre drawn figures for each PCC IV blockware function types The user simply drags the desired functions onto the drawing page and then uses smart connector lines to interconnect the blocks Double clicking on any block allows the user...

Page 53: ...fect on the controller outputs see Section 6 Menu Tree Main Menu Quick Parameters Service Manual Password Browse Blocks Utilities Modbus Ports Main Menu Quick Parameters Service Manual Password Browse Blocks Utilities Modbus Ports Screen Utilities Calibrate Touch Clean Screen Enable Buzzer Choose Theme Set Touch Sensitivity Screen Utilities Calibrate Touch Clean Screen Enable Buzzer Choose Theme S...

Page 54: ...keypad will pop up and assuming the Password level is correct the user will be able to enter any valid value for the selected parameter The new value will be saved after pressing Enter The Esc key will clear the value and the Back button will go back without making any changes If the current Password is not at the correct level or if S M mode is required and not set then the Parameter cannot be ed...

Page 55: ...ange One Output submenu to change the output The primary reason for using the Service Manual mode is to prevent the 4 20 mA and or Triac outputs from changing when the user is writing new blockware or for troubleshooting S M mode can be activated from the Service Manual menu All outputs can be placed in S M or Auto and an individual output channel can be changed via the Change One Output submenu T...

Page 56: ...re changing 1 Channel 1 2 Channel 2 etc Type determines whether you are modifying a 4 20 ma or Triac output AOUT Analog Output 4 20 ma TOUT Triac Output Example Board 1 Chanel 2 Type AOUT This means I am currently modifying the 4 20 ma signal of channel 2 on option card 1 The next two soft buttons allow the user to place the selected output into S M or Auto The SM Flag value tells you the output s...

Page 57: ...rator password and press Enter Engineer Technician or Operator will be displayed under Password Level of the Password submenu The Password Level is now active for 6 hours or until the user selects Log Out Change Password Change one of the passwords or enable disable the password system see below Log Out will log out so that no password level is activated Once a Password Level is activated it will ...

Page 58: ...d System Change all passwords to their factory default values as described above and the password system will be disabled Browse Blocks Menu This menu allows the user to display or modify all the Blockware parameters i e PID Gain Alarm Setpoint or Force Block outputs in all 256 Blocks of the PCC IV memory General Do not attempt to use the Browse Blocks menu until after you have read the complete I...

Page 59: ...iled description of each function type How to use Browse Blocks Navigation The upper left soft button displays which block is currently at the top of the screen I e B17 means that Block 17 is the uppermost block on the screen Pressing this soft button brings up a keyboard that allow the user to type in a number and navigate directly to the desired block number The next three soft buttons are filte...

Page 60: ...navigate to the desired block as described above and press the soft button beneath the output you wish to change The next submenu displays the selected block s output next to a soft button that has the status of the block forced or unforced Press this button to toggle between forced and unforced Multiple blocks may be forced simultaneously The Unforce All soft button will unforce all blocks in the...

Page 61: ...Inputs 0 5 Vdc and the Analog Outputs 4 20 mA All PCC IV controller Analog Inputs and Analog Outputs are factory calibrated per the chart below Board Type Input or Output Factory Calibration Tolerance All Input 0 001 V or 0 025 of 4 V All Output 0 003 mA or 0 019 of 16 mA When is Calibration Required Typically a PCC IV will not require field calibration for the life of the controller There are two...

Page 62: ... and plug in a spare field wiring connector 3 Wire all the terminals of all the channels together to the Voltage Source and to the Voltmeter see Section 2 for terminal numbers 4 Wire all the terminals of all the channels together to the Voltage Source and to the Voltmeter 5 Disconnect all 250 ohm resistors i e switch OFF or remove the jumpers 6 Go to the Calibrate I O submenu 7 Select which Board ...

Page 63: ...ng from the Analog Output channel to be calibrated Alternatively un plug the field wiring connector and plug in a spare field wiring connector 3 Wire the terminal to the milliamp meter see Section 2 for terminal numbers 4 Wire the terminal to the milliamp meter 5 Go to the Calibrate I O submenu 6 Select which Board is being calibrated CPU Board 0 Option Card 1 1 Option Card 2 2 7 Select which Chan...

Page 64: ...ps for any other Boards Channels that are going to be calibrated 16 The user may Save Config Changes from the Memory submenu if additional redundancy is desired 17 Important Be sure to exit Service Manual from the Service Manual submenu Screen Utilities Menu The Screen Utilities Menu simply displays the names of the other submenus contained in the PCC IV The Screen Utilities Menu provides the mean...

Page 65: ... the list to set the touchscreen sensitivity to the user desired level M4 Messages Menu This screen displays the last few internal messages of the PCC IV blockware and is useful in troubleshooting and general info about the last thing to happen The user will not normally need to view this screen Modbus Ports This menu is used to setup the communications parameters for the RS 485 and Ethernet ports...

Page 66: ...e correct parity on the next screen Press Back to return without making any changes RTU ASCII This menu item selects either Modbus RTU protocol or Modbus ASCII protocol Press the RTU ASCII soft button and press the correct protocol on the next screen Press Back to return without making any changes Data This menu item directs the PCC IV Modbus software to reply with either positive integers only or...

Page 67: ...tic 2 15 Force Multiple Coils Write Multiple Discrete Block Output 1 16 Preset Multiple Registers Write Multiple Analog Block Output 1 Notes 1 Only Tags set up by the Blockware programmer may be written to See section 5 2 Only the Loopback diagnostic sub function Code 00 is supported Addressing Each PCC IV is field configurable therefore the User must have the PCC IV Blockware Documentation or Dra...

Page 68: ...d Softwiring 7 Connectors 8 Search and Replace 8 Modifying the Front Panel Settings 9 Writing a Configuration to the PCC IV 10 Reading a Configuration from the PCC IV 11 Viewing Live Values 11 Exporting OIT Tags 11 Good Control Strategy 11 Flashing Updating Firmware 12 Modifying a Blockware Configuration 14 Define the requirements 14 Check the I O count 14 Break the configuration down into managea...

Page 69: ...arn Boiler Efficiency etc are included and are described in depth in Section 6 Any Function Any Block Each block is assigned a function type during configuration Any function type can be used in any block number The block number only determines the order in which the blocks are calculated In the example below at left block number 22 is not being used so it has the default NOP or No OPeration funct...

Page 70: ...PCC IV Instruction Manual rev 0 2 Page 5 3 Section 5 Configuring Blockware PCC IV Blocks Figure 5 1 ...

Page 71: ...Function Name such as F2 AIN Analog INput F51 AB C A B C F71 PID PID controller F118 DAETDR Delay After Energize Time Delay Relay All the functions available in the PCC IV are listed in numerical order in Section 6 Blockware Technical Reference of the instruction manual and the task that each type performs is described in detail Section 6 provides two Table of Contents the first is in Function Cod...

Page 72: ...e block function types softwiring parameters communication setup calibration data etc are stored in this flash memory Upon power up the PCC IV copies the contents of the EEPROM to RAM The controller then operates from this RAM When a user presses the Save Config Changes soft button via the Utilities Memory submenu the applicable contents of NVRAM see below are copied to EEPROM for additional redun...

Page 73: ...ment of a configuration in the field via a personal computer laptop USB A to Micro USB B cable and the PC4_Draw software Using PC4_Draw The PC4_Draw software runs on any Windows 7 thru 10 based computer laptop This manual assumes the user has a basic understanding of how to use personal computers open close files navigate folders etc To open PC4_Draw open the file PC4_Draw exe Then click on the Fi...

Page 74: ...puts and Parameters will be what you set them to here see Connection Points and Softwiring below See Section 6 for a full description of each block s inputs and parameters A block can also be resized to make it easier for the programmer to visualize the Blockware or if more connection points are needed Connection Points and Softwiring To connect one block to another hover the mouse cursor over the...

Page 75: ...ka OIT Alarm Tags can only be linked to Discrete Outputs and include extra fields for easy interface to the Preferred touchscreen OIT alarm logging system Comments are simply text boxes that the programmer can use to clarify what is going on add information about block parameters etc Title Block is editable and holds information common to all pages in the blockware Clicking on the title block will...

Page 76: ...g o Enter the message to be displayed on the Front Panel Alarm Annunciator Screen Push Button There are up to 4 user configurable pushbuttons that are set up here The buttons are arranged from left to right top to bottom 1 top left 2 top right 3 bottom left 4 bottom right Set the following for each Push Button o Click the cell in the Source Tag column and select the appropriate Tag from the dropdo...

Page 77: ...2 Bargraph Blinking Enabled This is a True of False selection that determines whether the bargraph will blink during an alarm condition When there is an alarm the ALARM LED will start blinking and if this is set to True the bargraphs will start flashing Quick Parameters Up to 9 Quick Parameters can be configured here This allows users to quickly change commonly used parameters See section 4 for us...

Page 78: ...ta tab on the Tool Bar and then click on Export OIT Tags on the Ribbon A window will open asking you to choose a file name and location to save the file Click OK when ready See OIT or SCADA documentation for information on how to import that data Good Control Strategy Development of good control strategy starts with a well conceived plan These few steps will help the user to configure the PCC IV i...

Page 79: ...REQUIRED BY THE SITE CONDITIONS BEFORE REMOVING POWER FROM THE PCC IV CONTROLLER FAILURE TO DO SO CAN RESULT IN EQUIPMENT DAMAGE INJURY OR DEATH 1 Gain access to the PCC IV CPU board that needs the firmware flashed 2 If possible Read the Blockware from the PCC IV into PC4_Draw per Section 5 of the PCC IV Technical Manual 3 Remove power by unplugging the 24 Vdc power supply plug s 4 Wait approximat...

Page 80: ...e startup select switch SW1 to 11001 A ON B ON C OFF D OFF E ON 13 Reinstall the PCC IV back to its correct location and apply power by plugging in the 24 Vdc power supply plug s 14 Using PC4_Draw write the Blockware that was previously saved back into the PCC IV in accordance with the PCC IV Technical Manual If the Blockware was not able to be saved write the latest as delivered as left Blockware...

Page 81: ...the recommended approach Define the requirements We will need to add an input for the Plant Master Demand a Submaster bias station to load balance the boilers a pushbutton to switch between Plant Master or Local PID control an LED to show the user which of these modes the controller is in and high and low pressure alarms The front panel display must also be modified Check the I O count The control...

Page 82: ...added to the original configuration The Plant Master section will require an input Block AIN a Front Panel Constant Block FPCON for the Submaster bias and a weighted sum Block WSUM to calculate the bias The Plant Master Local PID selector requires a pushbutton Block PB an indicator Block LED and a switching Block ASW The alarm section requires a high alarm Block HIALM and a low alarm Block LOALM T...

Page 83: ...peration Block 59 HIALM We will assume the Plant Master has a high and low header pressure alarm We want high and low drum pressure alarms only when in Local PID mode P1 SP Mode is 2 as we want an internal setpoint P2 Deadband is 1 00 as we want 1 of the Drum Pressure transmitter s full scale range to be our deadband i e a 0 200 PSI transmitter would have a dead band of 2 PSI P3 is 70 00 as we wan...

Page 84: ...Remote Upper Message Off Local Note that the LED that is set up next is inverted so when it is on we are in Local When the Pushbutton is on we are in Remote We set up the new LED o For LED 1 select Loc Rem LED as the Source Tag Message Local For Loop Names we want to name Loop 1 Local PID and name Loop 2 Plant Master We add the following to Loop Elements o For Loop 2 PV bargraph select PM Demand a...

Page 85: ... Local PID mode Place the controller in the Local PID mode Force the Drum Pressure Input B4 to 0 A Low PIS Alarm should annunciate Acknowledge the alarm press ACK and check the verbiage on the annunciator display Correct if necessary Note A 4 20 ma simulator can be used as the Input in lieu of forcing the Block Force the Drum Pressure Input to 100 A High PSI Alarm should annunciate Acknowledge the...

Page 86: ...T Square Root 24 F60 ABS Absolute Value 24 F71 PID PID Control with GAP and ADAPTIVE gain 24 F81 AOUT Analog 4 20 mA Output 28 F83 TOUT Triac Output 28 F90 D0 Discrete 0 Constant 34 F91 D1 Discrete 1 Constant 34 F92 DIN Discrete Input 34 F93 DCON Discrete Constant 35 F96 PANEL Front Panel Display 35 F97 RDIN MODBUS Remote Discrete Input 36 F98 PB Pushbutton 37 F99 LED LED 37 F101 HIALM High Alarm ...

Page 87: ... Output Open Collector Sinking 50 DSW Discrete Switch 45 DUAL Dual Range Flow Transmitter Selector Scaler 6 F T Function of Time Generator 13 F X Function of X Generator with Learn Mode 15 F F Flip Flop Logic 44 FPCON Front Panel Adjustable Constant 22 FPT H Front Panel Adjustable Track Hold 11 H LLIM High Low Signal Limiter 10 HIALM High Alarm 38 HSEL High Select 8 INTTDR Interval Time Delay Rela...

Page 88: ...The Function Name i e mnemonic or abbreviation SINGLE USE FUNCTION N Function can be used in multiple Blocks Y Function can only be used in one Block OUTPUT TYPE A The Block Output is Analog a 327 00 to 327 00 value D The Block Output is Discrete A Logical 0 or Logical 1 value Input Type A The Block Output is Analog a 327 00 to 327 00 value D The Block Output is Discrete A Logical 0 or Logical 1 v...

Page 89: ...s included for each analog Input for noise reduction and high frequency aliasing prevention The AIN function interfaces to Analog Inputs on the CPU board and on option boards Parameter 1 specifies the board location the CPU board board 0 Parameter 2 selects a specific Input on the specified board Any portion of the 0 5 100 Vdc Input range 0 5 Vdc min span may be selected and scaled to the 0 100 00...

Page 90: ...ways permitted to write data to RAIN and RDIN Block Outputs Signal Conditioning The value written by the Comm Link first passes through a min max limiter followed by a sec rate limiter and then a first order low pass digital smoothing filter The result of the digital filter becomes the RAIN Block Output By setting parameters 1 4 any of or all these signal conditioners can be turned off The Comm Li...

Page 91: ...point with the square root option selected the transmitters should NOT have internal square root selected From 100 9 WC the High Range Input would be selected square rooted and sent to the DUAL Block Output as a 100 30 signal Below 9 WC the Low range would be selected the transmitter signal would be scaled square rooted and sent to the DUAL Block Output as a 30 0 signal Formula shown with optional...

Page 92: ..._____________________________________________________________________________________ 1 O2 FULL SCALE 10 00 25 00 10 00 2 2 PPM CO FULL SCALE 1000 5000 1000 2 3 EXIT TEMPERATURE FULL SCALE 1000 2000 300 2 4 AMBIENT TEMPERATURE FULL SCALE 100 1000 100 2 5 LOSS DUE TO RADIATION AT 100 FIRING RATE 0 75 5 00 0 00 2 5 6 LOSS DUE TO MISC FIXED LOSSES 1 00 5 00 0 00 1 Fuel A Components Moles Unit of Fuel...

Page 93: ...Function HSEL selects the greater of the three Inputs and copies that value to its Block Output If there are only two Inputs connect either one of the two active Input Block numbers to the third Input NAME HSEL SINGLE USE FUNCTION N OUTPUT TYPE A Input Type Description Notes _____________________________________________________________________________________________ 1 A A INPUT 2 A B INPUT 3 A C ...

Page 94: ...er 1 0 Transfer Rate Limiting is OFF the Block Output changes instantaneously when the Select Input changes When Parameter 1 1 Transfer Rate Limiting is ON the rate of change of the Block Output signal is limited for the duration of the transfer After the Block Output becomes equal to the selected Input the rate limiting is disabled and the Output will track the selected Input with no rate of chan...

Page 95: ...RLIM Rate Limiter Function RLIM compares the sec rate of change of the Input analog signal to Parameter 1 increasing 2 decreasing rate of change limits Whenever the Input rate of change is between the two limits the Input is passed to the Block Output If the Input rate of change exceeds either limit the Output will ramp at the appropriate rate limit until the Output becomes equal to the Input The ...

Page 96: ...e Input is set to a discrete 1 the Hold Select Input is ignored and the Block is forced into the Track mode see below If no Blocks are connected to these Inputs the default value of Discrete 0 Inputs disable the override feature TRACK OVERRIDE 1 TRACK OVERRIDE 2 HOLD Track Hold Mode 0 0 0 Track 0 0 1 Hold 0 1 not used Track 1 0 not used Track 1 1 not used Track Transfer Rate Limiting is OFF when P...

Page 97: ...a bumpless balance less transfer from light off to modulate The second FPT H Block 10 is used to implement a remote setpoint with local manual override strategy In Remote mode the PID setpoint will be the Remote setpoint When the Operator presses the pushbutton to put the controller in Local setpoint mode the setpoint will initially be held at the most recent remote setpoint and the Operator can t...

Page 98: ... than Min Output limit F41 F T Function of Time Generator Function F T generates a Block Output based on a user generated output vs time profile The parameters provide an initial y0 Block Output value at time 0 0 min plus 10 additional y t breakpoint pairs Between each breakpoint pair the function ramps in a straight line fashion from breakpoint to breakpoint see the figure below Individual segmen...

Page 99: ... to set the Reset Input 1 at power up NAME F T SINGLE USE FUNCTION N OUTPUT TYPE A Input Type Description Notes _____________________________________________________________________________________________ 1 D HOLD INPUT 1 HOLD 1 2 D RESET INPUT 1 RESET 1 Parameter Description Default Max Min Code Notes _____________________________________________________________________________________________ 1...

Page 100: ...entered to activate Linear Mode Learn Mode X and Y coordinates may be entered or modified at any time from the PCC IV front panel editor the USB port or the MODBUS communications port via PLINK F X also has a Learn mode for automated entry and editing of characterizing curves Learn mode is particularly useful for setting up the various curves associated with combustion applications fuel air ratio ...

Page 101: ...ll eleven X Parameters are set equal to 150 00 i e inactive This allows the Block Output to be set to a defined value until a new curve is entered Blockware Example The Blockware on the next page shows a simplified parallel positioning combustion control application that uses two F x Blocks The F x in Block 55 holds the fuel to air characterizing curves for one fuel The F x in Block 62 holds the O...

Page 102: ... and interlocks to prevent unsafe conditions The example below requires an external Learn Enable input to be a 1 DIN Block 25 and both the fuel and air must be in Manual before Learn Mode is enabled A DCON could also be used as a permissive DCON requires a Technician level password to enable changing its Parameter WARNING This simplified example does not show all the required safety features that ...

Page 103: ...0 150 00 2 16 X8 150 00 150 00 150 00 2 6 17 Y8 50 00 150 00 150 00 2 18 X9 150 00 150 00 150 00 2 6 19 Y9 50 00 150 00 150 00 2 20 X10 150 00 150 00 150 00 2 6 21 Y10 50 00 150 00 150 00 2 22 X11 150 00 150 00 150 00 2 6 23 Y11 50 00 150 00 150 00 2 24 Y VALUE AFTER CLEAR 100 00 150 00 150 00 2 Notes 1 1 Learn Mode enabled 0 disabled 2 This Input is ignored if LEARN ENABLE Input 0 3 The Learn Eve...

Page 104: ...fault Max Min Code Notes _____________________________________________________________________________________________ 1 LAG SECONDS 0 1800 0 2 1 2 3 2 LEAD SECONDS 0 1800 0 2 1 2 3 3 GAIN 1 00 20 00 0 01 2 Notes 1 0 Off 2 Lag seconds must be greater than 0 if Lead is greater than 0 3 The ratio Lead Seconds Lag Seconds must be less than 15 F45 SCALE Signal Scaling Function SCALE generates a Block ...

Page 105: ...n determined by the result A times B For Example A B C Output 100 100 100 100 50 100 100 50 100 100 50 200 75 51 50 76 50 10 20 20 10 10 1 0 327 1 0 0 327 AB C can be used for A B multiplication without dividing by connecting Input C to dummy Block 1 A100 function or 100 AB C can be used for A C division without multiplying by connecting Input B to dummy Block 1 A100 function or 100 NAME AB C SING...

Page 106: ... 00 Averaging A B 2 A 0 500 B 0 500 0 1 000 0 00 0 500 0 500 n a 0 00 Averaging A B C 3 A 0 333 B 0 333 C 0 333 0 00 0 333 0 333 0 333 0 00 Scaling 0 100 xmtr Input is equivalent to 50 75 setpoint 0 25A 50 A 0 25 B 1 00 0 1 00 50 00 0 250 n a n a 50 00 Addition with Scaling Weighted Sum A 0 100 0 50 gpm B 0 100 0 150 gpm C 0 100 0 200 gpm Output 0 100 0 400 gpm 0 125A 0 375B 0 500C A 0 125 B 0 375...

Page 107: ...STANT VALUE 0 00 199 99 199 99 2 F55 FPCON Front Panel Adjustable Constant Function FPCON outputs a user defined analog constant This value can be changed via the PCC IV front panel Operator displays during normal operation or via the Modbus communications link This value cannot be changed from the PCC IV Editor menus nor via the USB Blockware download This function is used for Operator adjustable...

Page 108: ...or is limited to 300 internally F58 COUNT Pulse Counter Function COUNT adds 0 01 to the Block Output during the first scan that the Pulse Input changes from a 0 to a 1 i e on the rising edge assuming Parameter 1 the Pulse Divisor 1 If the Pulse Divisor 5 then 5 pulse rising edges must be received before the Output is incremented by 0 01 The Block Output rolls over from 99 99 to 0 00 after 10 000 p...

Page 109: ...egral Derivative control algorithm The PID equation used is called the Parallel form by the ISA Instrument Society of America others have used the terms Non Interactive or Ideal form See figure below for PID logic schematic see Appendix for PID tuning suggestions The Proportional constant is expressed as Gain as opposed to Proportional Band To convert Proportional Band i e PB into Gain Gain 100 PB...

Page 110: ...dup Logic Limit Out_Min Out Out_Max E G 1 G Kd dX dt Output Bias SP PV PV SP FILTER Limit AG 0 I TSIG P D FF I TSIG Output FF PV SP AG TSIG TM1 TM2 TM3 OM Out_Mid I D R P 4 P 7 E E G P 1 P Gap Gain f x Curve G G G G AG 100 Limit G 100 APID PID GPID P 9 P 3 P 8 PV D P 12 P 6 P 5 P 2 TM or OM Mode TM or OM I TM OM OR OR Internal Schematic of PID F71 Function Block ...

Page 111: ...upply pressure Non linear systems such as pH and furnace draft can be controlled more effectively by using the Gap PID or Adaptive gain PID modes Parameter 9 Gap PID provides a simple dual gain strategy i e lower gain near setpoint higher gain farther away from setpoint Adaptive gain PID allows the gain to be changed continuously as a function of a secondary variable using an F x Block see notes 3...

Page 112: ... seconds when the setpoint filter 1 00 Setpoint filter values less than 1 00 reduce the time constant proportionately The Setpoint filter must be turned OFF for full metering combustion fuel and airflow PID loops and for cascade control inner loops i e three element feedwater flow loop 7 The Maximum Output limit must be greater than the Minimum Output limit Parameters 5 and 6 8 For P or PD modes i...

Page 113: ...OUT function interfaces to Analog Outputs on the CPU board and on option boards Parameter 1 specifies the board location the CPU board Board 0 Parameter 2 selects a specific Analog Output on the specified board NAME AOUT SINGLE USE FUNCTION N OUTPUT TYPE A Input Type Description Notes _____________________________________________________________________________________________ 1 A INPUT BLOCK Aux ...

Page 114: ...ed to the TOUT Block Feedback Input For Potentiometer position feedback signals the AIN Block Scaling Parameter values should be 0V 0 and 5V 100 The AIN FILTER SECONDS Parameter 6 MUST be set to 0 0 seconds larger values will cause the actuator to hunt or oscillate TOUT Parm 4 5 are used to convert the unscaled AIN Feedback Input to a 0 100 TOUT Scaled Position Example AIN 25 at minimum position A...

Page 115: ...nt hunting Values below 45 of the actual stroke time can cause false TTRIP trips due to Slow Moving After the Deadband has been adjusted if the actuator continues to overshoot or undershoots excessively adjusting the Stroke Time can help to reduce this If the actuator undershoots increase Stroke Time if the actuator overshoots decrease the Stroke Time WARNING The TOUT Fault Detection logic may req...

Page 116: ...ue The TOUT channel is in S M mode Scaled Position is less than 5 or greater than 105 The Decrease Triac is ON and the Scaled Position is less than 5 The Increase Triac is ON and the Scaled Position is greater than 95 The last two exceptions prevent nuisance Faults due to inaccurate travel limit switch operation All actuators that use Fault Detection require a pull up resistor 330k or less that is...

Page 117: ...SE triac is turned ON DECREASE triac is turned OFF 2 DEC DECREASE triac is turned ON INCREASE triac is turned OFF 3 DISABLE The Fault is ignored The triacs respond to the normal TOUT PV and SP logic During the P9 time delay the triacs respond to the normal TOUT PV and SP logic Wire the Feedback Pot as indicated below to achieve the desired response during the P9 time delay Desired Response Connect...

Page 118: ... INCREASE 2 4 D TRIAC 2 INPUT DECREASE 2 Aux Output _____________________________________________________________________________________________ 1 D SERVICE MANUAL MODE SM 2 D TRIP SERVO FAULT TTRIP 3 A TRIP CODE TCODE Parameter Description Default Max Min Code Notes _____________________________________________________________________________________________ 1 OPTION BOARD 1 3 3 3 1 3 7 2 TRIAC ...

Page 119: ...ction DIN is the Blockware interface to the PCC IV s 120 Vac optically isolated Discrete Inputs hardware The DIN function interfaces to Discrete Inputs on the CPU board and on option boards Parameter 1 specifies the board location the CPU board board 0 Parameter 2 selects a specific Discrete Input on the specified board When 120 Vac is applied to the selected Input the Block Output equals discrete...

Page 120: ...m Input changes from a 0 to a 1 i e on the rising edge the matching alarm channel message is stored at the end of the sequential memory stack with a time date stamp If an alarm clears and re alarms before the alarm message is viewed i e acknowledged annunciator will NOT put a second copy of the same message on the stack When Input 2 Annunciator Enable equals 1 the annunciator functions normally Wh...

Page 121: ...ange the RDIN Output to a 1 and start the Pulse timer If no additional Comm Link triggers occur the RDIN Output changes to a 0 after the Pulse timer expires If another Comm Link trigger occurs when RDIN s Output 1 the timer restarts If no further Comm Link writes occur or if Comm Link continuously writes either a 1 or a 0 the Pulse timer will expire and the RDIN output changes back to a 0 See Puls...

Page 122: ...______ NONE Parameter Description Default Max Min Code Notes _____________________________________________________________________________________________ 1 POWER UP 1 HI 2 LO 3 LAST 3 3 1 2 1 Notes 1 See the description above F99 LED LED Function LED is the Blockware interface to the 6 user configurable LED indicators on the front panel A Tag is attached and configured in the Panel Data Screen to...

Page 123: ...nected to a Panel Data Screen Tag or directly to an ROUT DOUT or TOUT Block it can trigger audible visual alarms HIALM can also be used as a trigger in Blockware to automate a control strategy Example Trigger an ASW to select PID B instead of PID A when steam flow exceeds 20 See top figure at right Inputs 2 3 and Parameters 1 5 modify the basic behavior as follows 0 20 40 60 80 100 0 5 10 Percent ...

Page 124: ...e at right Alarm Disable Parameter 4 and Input 3 By default HIALM is Enabled and responds to alarms because the defaults are Input 3 is Block 2 D0 or Low and Alarm Disable is ACTIVE HI Parameter 4 1 However Blockware can use the Disable Input Input 3 to selectively Disable individual alarm Blocks that is force the alarm Block Output to be a 0 Parameter 4 determines if the Disable signal is Active ...

Page 125: ...____________________________________________________________________________________________ 1 SP MODE 1 EXT 2 INT 2 2 1 2 1 2 DEADBAND 0 20 100 00 0 00 1 3 3 INT SP 50 00 199 99 199 99 1 1 4 ALARM DISABLE ACTIVE LO HI 0 LO 1 HI 1 1 0 2 2 5 ALARM DELAY SECONDS 0 600 0 1 4 Notes 1 See Internal vs External Setpoint in HIALM F101 above 2 See Alarm Disable in HIALM F101 above 3 See Deadband above 4 Se...

Page 126: ...t Input 3 to selectively Disable individual alarm Blocks that is force the alarm Block Output to be a 0 Parameter 5 determines if the Disable signal is Active HI or Active LO as follows Parameter 5 Disable Input Mode 1 Active HI 0 Enabled 1 Active HI 1 Disabled 0 Active LO 0 Disabled 0 Active LO 1 Enabled Inverted Output Parameter 6 When Parameter 6 1 The Block Output is opposite the normal value ...

Page 127: ...d Alarm Disable is ACTIVE HI Parameter 3 1 However Blockware can use the Disable Input Input 2 to selectively Disable individual alarm Blocks that is force the alarm Block Output to be a 0 Parameter 3 determines if the Disable signal is Active HI or Active LO as follows Parameter 3 Disable Input Mode 1 Active HI 0 Enabled 1 Active HI 1 Disabled 0 Active LO 0 Disabled 0 Active LO 1 Enabled NAME RAT...

Page 128: ...PUT 2 D B INPUT 3 D C INPUT Parameter Description Default Max Min Code Notes _____________________________________________________________________________________________ 1 A B LOGIC 1 AND 2 OR 3 NAND 4 NOR 1 4 1 2 2 AB C LOGIC 1 AND 2 OR 1 2 1 2 3 INVERT INPUT A 0 NO 1 YES 0 1 0 2 4 INVERT INPUT B 0 NO 1 YES 0 1 0 2 5 INVERT INPUT C 0 NO 1 YES 0 1 0 2 6 INVERT OUTPUT 0 NO 1 YES 0 1 0 2 F110 XOR E...

Page 129: ...n be any value 1 means on the rising edge i e only once during the scan that the Input changes from 0 to 1 The Set and Reset Inputs have priority over the Toggle Input that is the Toggle Input is ignored unless both the Set and Reset Inputs 0 When Set Reset 1 the Block Output does not change and the Toggle Input is ignored The Toggle Input is only active for the single scan after the Toggle Input ...

Page 130: ...r Low and Alarm Disable is ACTIVE HI Parameter 3 1 However Blockware can use the Disable Input Input 2 to selectively Disable totalization that is force the TOT Block Output to be a 0 Parameter 3 determines if the Disable signal is Active HI or Active LO as follows Parameter 3 Disable Input Mode 1 Active HI 0 Enabled 1 Active HI 1 Disabled 0 Active LO 0 Disabled 0 Active LO 1 Enabled NAME TOT SING...

Page 131: ...NDS DELAY 1 19999 1 2 2 INVERT OUTPUT 0 NO 1 YES 0 1 0 2 F119 DADTDR Delay After De energize Time Delay Relay Off Delay Function DADTDR simulates a Delay After De energize Time Delay Relay also known as an OFF Delay function The Output may be inverted see Parameter 2 The timing diagram shows the default non inverted logic For non Inverted Output When the Input 1 the Output is 1 and the timer is re...

Page 132: ...LAY 0 1 SCAN 1 19999 0 2 2 2 INVERT OUTPUT 0 NO 1 YES 0 1 0 2 Notes 1 An Input transition from 0 to 1 starts the timing sequence 2 Delay Seconds 0 means the Output will go active for exactly one scan and then return to the inactive Output state F121 DAE DAD Delay After Energize Delay After De energize Timer Function DAE DAD combines DAETDR F118 and DADTDR F119 into a single function DAE DAD behave...

Page 133: ... non inverted logic For non Inverted Output When the Input is 0 the Output is 0 and both ON and OFF timers reset When the Input changes from 0 to 1 the Output changes to 1 and the ON timer starts Parameter 1 If the Input is still 1 and the ON timer times out the Output changes to 0 the OFF timer starts and the ON timer resets If the Input is still 1 the Output changes to 1 and the cycle repeats un...

Page 134: ...____________________________________________________________ 1 D REMOTE LOCAL BLOCK 1 REMOTE WRITES ENABLED 0 LOCAL ONLY No Parameters F125 ROUT Relay Output Function ROUT is the Blockware interface to the PCC IV Relay Output hardware ROUT interfaces to Relay Outputs on the CPU board and on option boards Parameter 1 specifies the board location the CPU board board 0 Parameter 2 selects a specific ...

Page 135: ...CTION N OUTPUT TYPE D Input Type Description Notes _____________________________________________________________________________________________ 1 D INPUT BLOCK 1 Parameter Description Default Max Min Code Notes _____________________________________________________________________________________________ 1 OPTION BOARD 0 CPU BOARD 0 2 0 3 2 OUTPUT CHANNEL 1 4 1 3 3 INVERT INPUT 0 NO 1 YES 0 1 0 2 ...

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