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™ PD6088/PD6089 Modbus

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Instruction Manual

PRECISION DIGITAL CORPORATION

233 South Street • Hopkinton MA 01748 USA
Tel (800) 343-

1001 • Fax (508) 655-8990

www.predig.com

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1/8 DIN Modbus Scanner with NEMA 4X, IP65 Front

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Modbus RS-485 RTU Scanner as Master, Slave, or Snooper

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On-Board RS-485 Serial Communications Standard

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Decimal or Feet & Inches (with Eighths & Sixteenths) Display Options

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Scan up to 16 Modbus Process Variables

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Add, Diff, Avg, Multi, Div, Min, Max, Weighted Avg, Ratio, Concentration, & More

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Dual-Line 6-Digit Display, 0.6" (15 mm) & 0.46" (12 mm)

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Isolated 24 VDC @ 200 mA Transmitter Power Supply

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2 or 4 Relays with Interlocking Capa Isolated 4-20 mA Output Options

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Free PC-Based, On-Board, ScanView USB Programming Software

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SunBright Display Standard Feature; Great for Outdoor Applications

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No Assembly Required

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Operating Temperature Range: -40 to 65°C (-40 to 149°F)

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Input Power Options: 85-265 VAC / 90-265 VDC or 12-24 VDC / 12-24 VAC

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Multi-Pump Alternation Control

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32-Point, Square Root, or Exponential Linearization

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Programmable Display, Function Keys & Digital Input

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External 4-Relay, Dual 4-20 mA Output & Digital I/O Expansion Modules

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Password Protection

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Wide Assortment of NEMA 4X Enclosures for up to Ten Scanners

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Light / Horn & Reset Button Accessory

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Control Station Accessory for Remote Operation of P

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3-Year Warranty

ScanView

USB Install

Содержание PROVU PD6088 Modbus

Страница 1: ...ransmitter Power Supply 2 or 4 Relays with Interlocking Capability Isolated 4 20 mA Output Options Free PC Based On Board ScanView USB Programming Software SunBright Display Standard Feature Great for...

Страница 2: ...omplete details Registered Trademarks All trademarks mentioned in this document are the property of their respective owners 2020 Precision Digital Corporation All rights reserved FREE ScanView Program...

Страница 3: ...mmunications Connections Table 16 F4 Digital Input Connections 16 Relay Connections 17 Switching Inductive Loads 17 4 20 mA Output Connections 17 Analog Output Power Supply 17 External Relay Analog Ou...

Страница 4: ...43 Fail Safe Operation failsf 43 Front Panel LEDs 43 Latching and Non Latching Relay Operation 43 Non Latching Relay Auto 44 Non Latching Relay with Manual Reset A nman 44 Latching Relay LatcH 44 Lat...

Страница 5: ...re 6 PD6088 89 H2 Connectors Label 15 Figure 7 PD6088 89 H3 Connectors Label 15 Figure 8 PD6088 89 H4 Connectors Label 15 Figure 9 PD6088 89 H5 Connectors Label 15 Figure 10 PD6088 89 H7 Connectors La...

Страница 6: ...ponent or round horizontal tank calculations The displays relays and the analog outputs may be assigned to PVs or to math channels C1 C2 C3 or C4 The digital inputs outputs can be custom programmed fo...

Страница 7: ...oper mode Time the scanner will wait for new data before going into break condition Slave mode Programming 0 disables the timeout the last value received will be displayed indefinitely Communica tion...

Страница 8: ...ed in non volatile memory for a minimum of ten years with or without power Power Options 85 265 VAC 50 60 Hz 90 265 VDC 20Wmax 12 24 VDC 12 24 VAC 15 W max Powered over USB for configuration only Fuse...

Страница 9: ...or each relay Note Relay coil is energized in non alarm condition In case of power failure relay will go to alarm state Auto Initialization When power is applied to the scanner relays will reflect the...

Страница 10: ...lete list of capabilities Contacts 3 3 VDC on contact Connect normally open contacts across F4 to COM Logic Levels Logic High 3 to 5 VDC Logic Low 0 to 1 25 VDC Additional I O Up to 2 external modules...

Страница 11: ...80 MHz 1kHz 80 AM AC Surge 2kV Common 1kV Differential Surge 1KV CM Power Frequency Magnetic Field 30 A m 70 V for 0 5 period Voltage Dips 40 V for 5 50 periods 70 V for 25 periods Voltage Interruptio...

Страница 12: ...de the bracket toward the front of the case and remove Insert scanner into the panel cutout Install mounting brackets and tighten the screws against the panel To achieve a proper seal tighten the moun...

Страница 13: ...8 Install the scanner and put into service 9 Make any programming adjustments using the front panel buttons ScanView Software The easiest and quickest way to program your PROVU scanner is to use the...

Страница 14: ...ou receive a User Account Control warning click Yes 4 If there is an update available click the Update button to install the new version Otherwise click Configure to begin programming your scanner Not...

Страница 15: ...nectors Label Figure 10 PD6088 89 H7 Connectors Label DO NOT connect any equipment other than Precision Digital s expansion modules cables or scanners to the RJ45 M LINK connector Otherwise damage wil...

Страница 16: ...ions for 3 wire RS 485 devices PD6088 PD6089 Master PD6088 PD6089 Snooper PC Connection Modbus Slave Meter Modbus Level Gauge On Board Terminals On Board Terminals PDA8485 RS 485 to USB RS 485 RS 485...

Страница 17: ...rminals An RC network may also be installed across the load Experiment for best results Use a diode with a reverse breakdown voltage two to three times the circuit voltage and forward current at least...

Страница 18: ...re As the name implies the interlock relay feature reassigns one or more alarm control relays for use as interlock relay s Interlock contact s are wired to digital input s and trigger the interlock re...

Страница 19: ...F Communications Fault Condition PAUSE Press SCAN to pause scanning PLAY Press SCAN to resume scanning STOP Stop scan on alarm Note LEDs for relays in manual mode flash with the M LED every 10 second...

Страница 20: ...Byte Order Select little endian byte order 2143 Byte Order Select byte swapped big endian byte order Not available for Short integer Display Functions Messages Display Parameter Action Setting Descri...

Страница 21: ...nd setup Setup Enter Setup menu pV Process Variable Enter PV Setup menu PV 1 PV Select PV 1 16 tag Tag Tag units Units Units Display Functions Messages Display Parameter Action Setting Description for...

Страница 22: ...Relay turns on when Communications Break detected Off Off Relay goes to non alarm condition when break detected Relay turns off when Communications Break detected Display Functions Messages Display Pa...

Страница 23: ...ext digit and the Up arrow to increment the digit s value The digit being changed is displayed brighter than the rest Press and hold the Up arrow to auto increment the display value Press the Enter bu...

Страница 24: ...unique address The scanner address Scan ID may be programmed between 1 and 247 The transmit delay may be set between 0 and 4999 ms this value must be less than Poll Time of PVs The parity can be set...

Страница 25: ...Enable Process Variables PVs In Master or Snooper Mode navigate to the PV Number menu and press ENTER From there the user can scroll through all of the sixteen available PVs In order to enable a speci...

Страница 26: ...Poll Time and Response Timeout menus PV Number Enable disable PVs select slave ID function code register number data type byte order Poll Time Enter the time interval to poll the slave devices selecte...

Страница 27: ...ibility of communication errors and communication break conditions use a poll time of 5 seconds or more with slow baud rates e g 4800 bps or less 2 The response time for scanners set up for Snooper mo...

Страница 28: ...Type is Float 3 Default Slave ID for PV1 001 for PV2 002 for PV3 003 etc The Master ignores the decimal point setting for slave devices that specify a Short or Long integer For example a slave that is...

Страница 29: ...etup The Setup menu is used to select 1 PV Setup a PV Tags b PV Units c Format Decimal point or Feet Inches d Decimal Point e Scale input data 2 Display assignment Intensity 3 Relay assignment and ope...

Страница 30: ...tag units format display decimal point float decimal point resolution and scaling of the input data Note PV1 and PV2 can have multiple points for linearization Only two points are available for all ot...

Страница 31: ...ut 2 must be less than Input 3 etc known as monotonic values Press Enter to save the changes or Menu to exit without saving When the Linear function is selected for PV1 PV2 up to 32 points may be prog...

Страница 32: ...ogrammed to display any of the following Display Parameter Setting Description D pV Display PV Display PVs 1 16 D Ch C Display C Channel Display Math Channels C1 C4 PV unit Display PV Units Display PV...

Страница 33: ...nner Instruction Manual 33 Display Line 1 Menu Line 1 dsplay Note For Tag PVn and Tag PVn U the default settings for PVs are 1 3 5 7 followed by two underscores which represent empty PVs These all can...

Страница 34: ...nner Instruction Manual 34 Display Line 2 Menu Line 2 dsplay Note For Tag PVn and Tag PVn U the default settings for PVs are 2 4 6 8 followed by two underscores which represent empty PVs These all can...

Страница 35: ...e right are shifted one position Press and hold up arrow to auto scroll the characters in the display Application Example 1 In this application we have a system consisting of 4 multivariable tank leve...

Страница 36: ...ster PV6 30017 30017 Tank 2 Average Temperature Data Type Long integer Binary Signed Long Byte Order 1234 1234 PV7 Slave ID 3 3 Parameter PD6088 Master PD6088 Snooper Description Comment Function Code...

Страница 37: ...l Interface Display 1 000000 000000 Input 2 999999 999999 0 001 inch resolution Display 2 83 333 83 333 Feet Application Example 2 In this application we have a system consisting of 4 multivariable ta...

Страница 38: ...dition has cleared e Pump alternation control automatic reset only f Sampling the relay is activated for a user specified time g Off relay state controlled by Interlock feature 3 Set 1 Set point Rst 1...

Страница 39: ...w the set point Note Changes are not saved until the reset point has been accepted Setting Fail Safe Operation failsf In fail safe mode of operation the relay coil is energized when the process variab...

Страница 40: ...mer resets and the relay does not change state The same principle applies to the Off time delay Note If Automatic or Manual A nmAn reset mode is selected the LED follows the reset point and not the re...

Страница 41: ...t go below the set point and then go above it Low Alarm Operation Set Reset For Manual reset mode ACK can be pressed anytime to turn off relay For relay to turn back on signal must go above set point...

Страница 42: ...f or on based on their operating mode and their set and reset points without regard to their prior state This is similar to the auto initialization on power up Below is a diagram showing three example...

Страница 43: ...Ds The LEDs on the front panel provide status indication for the following LED Status LED Status 1 Alarm 1 5 Alarm 5 2 Alarm 2 6 Alarm 6 3 Alarm 3 7 Alarm 7 4 Alarm 4 8 Alarm 8 The scanner is supplied...

Страница 44: ...Manual reset any time Condition LED Relay Normal Off Off Alarm On On Ack Off Off Latching Relay with Clear Lt Clr In this application the scanner is set up for manual reset only after the signal passe...

Страница 45: ...the set and reset points of pump 2 outside the range of pump 1 the first pump on is the first pump to go off This is true for up to 8 alternating pumps if set up accordingly 6 Relay 3 will go into ala...

Страница 46: ...urce Programming aoutpr on page 58 No equipment is needed to scale the analog outputs simply program the display values to the corresponding mA output signal The Analog Output menu is used to program...

Страница 47: ...is being displayed and enter the correct password to gain access to the menu After exiting the programming mode the scanner returns to its password protected condition Disabling Password Protection T...

Страница 48: ...de time Scan Time Select Scanning Time nman Manual Select Manual Scan Mode Alarnm Alarm Select Go or Stop Alarm go Go Select Alarm Go Stop Stop Select Alarm Stop Contrl Manual Control Enter Manual Con...

Страница 49: ...to other math channels e g C3 C1 C2 sunm Sum Math2 Function Sum dif Difference Math2 Function Difference Advanced Features Menu Display Messages Display Parameter Action Setting difabs Absolute Diffe...

Страница 50: ...he PV scan mode and the scanner s behavior on alarm condition The operator is able to scan automatically based on a time parameter or scan manually with front panel keys or digital inputs The operator...

Страница 51: ...own the display response to changes on the input signal This parameter is associated with the analog input channels Rounding Feature round The rounding feature is used to give the user a steadier disp...

Страница 52: ...level transmitters used to measure volume in odd shaped tanks or to convert level to flow using weirs and flumes with complex exponents Note Multi point Linearization applies to PV1 and PV2 only All...

Страница 53: ...The tank s dimensions can be entered in inches or centimeters the scanner automatically calculates the volume in gallons or liters After entering the dimensions complete the scaling process with the d...

Страница 54: ...bS Average PV1 PV2 2 P F AVG Multiplication PV1 PV2 P F Nmulti Division PV1 PV2 P F diVide Max PV Max value of all selected PVs Hi pV Min PV Min value of all selected PVs Lo pV Draw PV1 PV2 1 F drAuw...

Страница 55: ...se refer to the following graphics for details on various Math Functions Main Math Channels Each PV is represented by an underscore There are 6 lines shown and ten lines hidden Enter any or all PVs wi...

Страница 56: ...Modbus Scanner Instruction Manual 56 Sum Menu sunm Difference Menu dif Difference Absolute Menu difAbS Average Menu aVg Multiplication Menu nmulti Divide Menu diVide Only two PVs at a time will be use...

Страница 57: ...raw Menu drauw Only two PVs at a time will be used for this function Weighted Average Menu uwAvg Only two PVs at a time will be used for this function Ratio Menu ratio Only two PVs at a time will be u...

Страница 58: ...log outputs can be programmed for source of data overrange and underrange absolute maximum and minimum output and communications break values They can also be recalibrated To calibrate the analog outp...

Страница 59: ...that includes a power supply internal or external 12 to 24 VDC and the mA input on the digital meter See Figure 18 4 20 mA Output Connections on page 17 for details 2 Turn on all devices Allow for a...

Страница 60: ...he stored maximum minimum display values for all channels relay Directly access the relay menu Set 1 Directly access the set point menu for relay 1 through 8 Rly d Disable all relays until a button as...

Страница 61: ...you to the next level then pressing the Up arrow until you arrive at the RESET menu Press ENTER to assign the RESET menu to the selected function key or digital input Now when the scanner is in Run Mo...

Страница 62: ...es 3 Baud rate and parity of all devices on the bus 4 Scanner Id must be different from other devices Snooper mode not reading the PVs on the RS 485 bus Check 1 Increase Master s Transmit Delay e g Sn...

Страница 63: ...Mode after displaying all the settings Reset Scanner to Factory Defaults When the parameters have been changed in a way that is difficult to determine what s happening it might be better to start the...

Страница 64: ...nnel on the upper display and alternate between tag units on the lower display The relays and analog output can be programmed to operate based on any PV or math channel Front Panel Buttons Operation B...

Страница 65: ...1 4 Sunm Sum Adder constant P Adder 0 000 Factor constant F Factor 1 000 Factory Defaults User Settings Parameter Display Default Setting Filter Filter Filter PV 1 Ch A 70 Filter PV 2 Ch B 70 Bypass P...

Страница 66: ...ange output O rang 21 000 mA Underrange output u rang 3 000 mA Communications break output break 1 000 mA Maximum output nmAx 23 000 mA Minimum output nmin 1 000 mA F1 function key F1 Previous PV F2 f...

Страница 67: ...plicable technical standards and when applicable or required a European Union notified body certification Standards EN 55022 2003 EN 61000 6 2 2001 EN 61010 1 2001 EN 61326 2006 The standards EN 55022...

Страница 68: ...w predig com LIM6088_F SFT088 Ver 2 020 up 05 20 Contact Precision Digital Technical Support Call 800 610 5239 or 508 655 7300 Fax 508 655 8990 Email support predig com Sales Support Call 800 343 1001...

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