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Publication 1794-6.5.12 - November 1997

A-2

Specifications

System Throughput (8 channels scanned) For maximum throughput short circuit all unused channels.

4ms – millivolt
6.0ms – ohms – 2- and 4-wire RTD
10.0ms – ohms – 3-wire RTD
6.4ms – 2- and 4-wire RTD (°F)
6.8ms – 2- and 4-wire RTD (°C), (°K)
10.2ms – 3-wire RTD (°F)
10.6ms – 3-wire RTD (°C), (°K)
5.6ms – Thermocouples (°F)
6.0ms – Thermocouples (°C), (°K)

Open Circuit Detection

Defaults to maximum value

Open Input Detection Time

0 to 6.5s depending on input type and mode selected
1.3s – Thermocouple
3.8s – 2- and 4-wire RTD
6.5s – 3-wire RTD

Overvoltage Capability

7V dc continuous @ 25°C

RFI Immunity

Error of less than 1% of range at 10V/M
27 to 1000MHz

Overall Drift with Temperature

150ppm/°C of span (maximum)

Cold Junction Compensation range

0 to 70°C

Cold Junction Compensator

A-B Part Number 969424-02

Indicators

1 green power status indicator

Flexbus Current

40mA

Power Dissipation

3W maximum @ 31.2V dc

Thermal Dissipation

Maximum 10.2 BTU/hr @ 31.2V dc

Keyswitch Position

3

External dc Power

Supply Voltage
Voltage Range
Supply Current

24V dc nominal
19.2 to 31.2V dc (includes 5% ac ripple)
85mA @ 24V dc

General Specifications

Dimensions

Inches
(Millimeters)

1.8H

×

3.7W

×

2.1D

(45.7

×

94.0

×

53.3)

Environmental Conditions

Operational Temperature
Storage Temperature
Relative Humidity

Shock

Operating
Non-operating

Vibration

0 to 55°C (32 to 131°F)
–40 to 85°C (–40 to 185°F)
5 to 95% noncondensing (operating)
5 to 80% noncondensing (nonoperating)
30 g peak acceleration, 11(

±

1)ms pulse width

50 g peak acceleration, 11(

±

1)ms pulse width

Tested 5 g @ 10-500Hz per IEC 68-2-6

Conductors

Thermocouple
Millivolt
Category

Use appropriate shielded thermocouple wire

1

Belden 8761
2

2

Agency Certification
(when product is marked)

• CSA certified
• CSA Class I, Division 2

Groups A, B, C, D certified

• UL listed

• CE marked for all applicable directives

User Manual

Publication 1794-6.5.12

1

Refer to thermocouple manufacturer for proper thermocouple extension.

2

Use this conductor category information for planning conductor routing. Refer to publication 1770-4.1, “Industrial
Automation Wiring and Grounding Guidelines for Noise Immunity.”

Specifications – 1794-IRT8 Thermocouple/RTD/mV Input Module

Allen-Bradley PLCs

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Содержание 1794-IRT8

Страница 1: ...User Manual Thermocouple RTD Millivolt Input Module Cat No 1794 IRT8 Allen Bradley Allen Bradley PLCs ...

Страница 2: ...ration when applying products such as those described in this publication Reproduction of the contents of this copyrighted publication in whole or in part without written permission of Allen Bradley Company Inc is prohibited Throughout this manual we make notes to alert you to possible injury to people or damage to equipment under specific circumstances Attention helps you identify a hazard avoid ...

Страница 3: ...Publication 1794 6 5 12 November 1997 2 Allen Bradley PLCs ...

Страница 4: ... the processor What This Manual Contains The contents of this manual are as follows Chapter Title What s Covered 1 Overview of Flex I O and Your Thermocouple RTD mV Module Describes features capabilities and hardware components 2 How to Install Your TC RTD mV Input Module Installation and connecting wiring 3 Module Programming Block transfer programming and programming examples 4 Writing Configura...

Страница 5: ...er 1794 5 48 1794 ADN 24V dc DeviceNet Adapter 1794 5 14 1794 6 5 5 1794 ASB C 24V dc Remote I O Adapter 1794 5 50 1794 6 5 9 1794 ASB2 B 24V dc 2 Slot Remote I O Adapter 1794 5 44 1794 6 5 13 1794 APB 24V dc Profibus Adapter 1794 5 40 1794 6 5 6 1794 IB8 24V dc 8 Sink Input Module 1794 5 30 1794 OB8 24V dc 8 Source Output Module 1794 5 31 1794 IB16 24V dc 16 Sink Input Module 1794 5 4 1794 OB16 2...

Страница 6: ...put Module 1794 5 50 1794 6 5 12 1794 IJ2 24V dc 2 Frequency Input Module 1794 5 49 1794 6 5 11 1794 IA8 120V ac 8 Input Module 1794 5 9 1794 OA8 120V ac Output Module 1794 5 10 1794 TB2 1794 TB3 2 wire Terminal Base 3 wire Terminal Base 1794 5 2 1794 TBN Terminal Base Unit 1794 5 16 1794 TBNF Fused Terminal Base Unit 1794 5 17 1794 TB3T Temperature Terminal Base Unit 1794 5 41 1794 TB3S Spring Cl...

Страница 7: ...Publication 1794 6 5 12 November 1997 P 4 Using This Manual Allen Bradley PLCs ...

Страница 8: ...r Requirements 2 2 Wiring the Terminal Base Units 1794 TB3G shown 2 3 Installing the Module 2 4 Mounting the Terminal Base Unit on a DIN Rail 2 4 Panel Wall Mounting 2 6 Mounting the Thermocouple RTD mV Module on the Terminal Base Unit 2 8 Connecting Wiring for the TC RTD mV Module 2 9 Connecting Wiring using a 1794 TB3G and TB3GS Terminal Base Units 2 9 Wiring connections for the 1794 IRT8 TC RTD...

Страница 9: ...ble Mapping with the DeviceNet Adapter Chapter 5 Chapter Objectives 5 1 About DeviceNetManager Software 5 1 Polled I O Structure 5 1 Adapter Input Status Word 5 2 System Throughput 5 3 Mapping Data into the Image Table 5 3 Thermocouple RTD Input Module 1794 IRT8 Image Table Mapping 5 3 Thermocouple RTD Input Module 1794 IRT8 Read Words 5 4 Thermocouple RTD Input Module 1794 IRT8 Write Words 5 4 Bi...

Страница 10: ...les Communicate with Programmable Controllers FLEX I O Thermocouple RTD mV modules are block transfer modules that interface analog signals with any Allen Bradley programmable controllers that have block transfer capability Block transfer programming moves input or output data words between the module s memory and a designated area in the processor data table Block transfer programming also moves ...

Страница 11: ...s until the adapter requests their transfer 3 Your ladder program instructs the adapter to perform a BTR of the values and stores them in a data table 4 The adapter and module determine that the transfer was made without error and input values are within specified range 5 Your ladder program can use and or move the data if valid before it is written over by the transfer of new data in a subsequent...

Страница 12: ...ion Indicators are provided to identify input fault conditions and to show when power is applied to the module Chapter Summary In this chapter we told you about the FLEX I O system and the Thermocouple RTD mV input module and how they communicate with programmable controllers 1794 IRT8 Keyswitch Position Indicator 3 Module Type Input Designators Removable Label Power On Indicator IN 0 IN 2 IN 4 IN...

Страница 13: ...Publication 1794 6 5 12 November 1997 1 4 Overview of FLEX I O and Your Thermocouple RTD mV Input Module Allen Bradley PLCs ...

Страница 14: ...sion Standard Part 2 Industrial Environment EN 5008 2EMC Generic Immunity Standard Part 2 Industrial Environment This product is intended for use in an industrial environment For information on See page Before You Install Your Module 2 1 European Union Directives 2 1 Power Requirements 2 2 Installing the Module 2 4 on a DIN rail 2 4 on a wall panel 2 6 on the terminal base 2 8 Connecting Wiring 2 ...

Страница 15: ...ations Industrial Automation Wiring and Grounding Guidelines For Noise Immunity publication 1770 4 1 Guidelines for Handling Lithium Batteries publication AG 5 4 Automation Systems Catalog publication B111 This equipment is classified as open equipment and must be mounted in an enclosure during operation to provide safety protection Power Requirements The wiring of the terminal base unit is determ...

Страница 16: ...w through any base unit must not be greater than 10A Combination 24V dc 24V dc 24V dc 24V dc 24V dc 24V dc Note Use this configuration if using any noisy dc digital I O modules in your system Thermocouple RTD mV Module wiring separate from digital wiring Note All modules powered by the same power supply must be frequency or TC RTD mV modules for this configuration Note All modules must be frequenc...

Страница 17: ... connector of the unit to which you are connecting this terminal base unit 2 Check to make sure that the 16 pins in the male connector on the adja cent device are straight and in line so that the mating female connec tor on this terminal base unit will mate correctly 3 Position the terminal base on the 35 x 7 5mm DIN rail A A B pt no 199 DR1 46277 3 at a slight angle with hook B on the left side o...

Страница 18: ...r is fully retracted 7 7 4 1 30077 M 7 7 6 2 3 4 0 9 8 1 Press down on the terminal base unit to lock the terminal base on the DIN rail If the terminal base does not lock into place use a screwdriver or similar device to open the locking tab press down on the terminal base until flush with the DIN rail and release the locking tab to lock the base in place Gently push the flexbus connector into the...

Страница 19: ...nting plate installing the terminal base units and securing them to the wall or panel If you are installing your module into a terminal base unit that is already installed proceed to Mounting the Thermocouple RTD mV Module on the Terminal Base on page 2 8 Use the mounting kit Cat No 1794 NM1 for panel wall mounting 1 4 35 5 1 1794 NM1 Mounting Kit Contents 1 Mounting Plate for Adapter 2 18 6 self ...

Страница 20: ...Automation Wiring and Grounding Guidelines publication 1770 4 1 4 Hold the adapter 2 at a slight angle and engage the top of the mount ing plate in the indention on the rear of the adapter module 5 Press the adapter down flush with the panel until the locking lever locks 6 Position the terminal base unit up against the adapter and push the female bus connector into the adapter 7 Secure to the wall...

Страница 21: ...aight so they will align properly with the connector in the terminal base unit 4 Position the module 4 with its alignment bar 5 aligned with the groove 6 on the terminal base 4 1 3 2 5 6 7 ATTENTION Remove field side power before removing or inserting the module This module is designed so you can remove and insert it under backplane power When you remove or insert a module with field side power ap...

Страница 22: ...the terminal base unit Connect the input devices as shown in the wiring table on page 2 11 2 Terminate shields to terminals 16 or 33 on row B or 40 through 45 on row C 3 Connect 24V dc to terminal 34 on the 34 51 row C and 24V com mon to terminal 35 on the 34 51 row C Module 1794 TB3G 1794 TB3GS 1794 IRT8 Yes Yes 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31...

Страница 23: ...al base unit ATTENTION The TC RTD mV modules do not receive power from the backplane 24V dc power must be applied to your module before operation If power is not applied the module position will appear to the adapter as an empty slot in your chassis If the adapter does not recognize your module after installation is completed cycle power to the adapter 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 ...

Страница 24: ... Signal Terminal H Low Signal Terminal L RTD Source Current Signal Return1 0 1 2 0 3 1 5 6 4 7 2 9 10 8 11 3 13 14 12 15 4 18 19 17 20 5 22 23 21 24 6 26 27 25 28 7 30 31 29 32 24V dc Power 34 and 50 24V dc Common 35 and 51 1 Terminals 37 38 and 39 and 46 47 and 48 are for cold junction compensation with 38 and 47 chassis GND Connect CJC1 to terminal 5 or 21 CJC2 to terminal 12 or 29 2 Terminals 1...

Страница 25: ...2 23 24 25 26 27 28 29 30 31 32 33 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 34 1794 TB3G 0 15 34 51 16 33 A B C 4 Wire RTD Channel 3 2 Wire RTD Channel 1 3 Wire RTD Channel 2 Attention Keep exposed area of inner conductor as short as possible CJC Thermocouple Channel 4 1 2 2 1 1 3 2 1 1a 2a 2 Allen Bradley PLC...

Страница 26: ...en Bradley PWR C Power Indicator indicates power applied to module A Insertable label for writing individual input designations F F F F F F F F B B Fault Indicator indicates successful power up or noncritical fault Indicator Color State Meaning Fault Red On At power up Channel 0 indicator lights at powerup until all internal diagnostics are checked After successful powerup the indicator goes off i...

Страница 27: ...Publication 1794 6 5 12 November 1997 2 14 How to Install Your Thermocouple RTD mV Input Module Allen Bradley PLCs ...

Страница 28: ...PLC processor These programs can be modified to suit your application requirements A configuration block transfer write BTW is initiated when the analog module is first powered up and subsequently only when the programmer wants to enable or disable features of the module The configuration BTW sets the bits which enable the programmable features of the module such as filters and signal ranges etc B...

Страница 29: ... data to the PLC 2 processor PLC 3 Family Processor Block transfer instructions with the PLC 3 processor use a control file and a data file The block transfer control file contains the data table section for module location the address of the block transfer data file and other related data The block transfer data file stores data that you want transferred to the module when programming a BTW or fr...

Страница 30: ...NSFER READ Rack Group Slot Data File 3 2 1 N18 101 Length Control 0 B17 0 EN BTW BLOCK TRANSFER WRITE Rack Group Slot Data 3 2 1 N18 1 DN Length Control 0 B17 0 5 B17 0 B17 0 15 ER DN ER Rung M 0 The IRT8 module is located in rack 3 I O group 2 slot 1 The control file is a 10 word file starting at B17 0 that is shared by the BTR BTW The data obtained by the PLC3 processor is placed in memory start...

Страница 31: ...gth Continuous N22 1 0 N ER N22 200 15 N22 200 15 N22 205 15 Rung 2 0 The IRT8 module is located in rack 2 I O group 2 slot 1 The integer control file starts at N22 200 is 5 words long and is compatible with all PLC 5 family members The data obtained by the PLC 5 processor from the IRT8 module is placed in memory starting at N22 101 and with the default length of 0 is 11 words long The length can ...

Страница 32: ...O 1 The IRT8 module is located in rack 14 I O group 1 slot 0 The data obtained by the PLC 5 250 processor from the IRT8 module is placed in the data table starting at 2BTD5 101 and with the default length of 0 is 11 words long The length can be any number between 0 and 11 BW141 0 EN Rung 1STEPO 1 The IRT8 module is located in rack 14 I O group 1 slot 0 The data sent to the IRT8 module from the PLC...

Страница 33: ...Publication 1794 6 5 12 November 1997 3 6 Programming Your Thermocouple RTD Input Module Allen Bradley PLCs ...

Страница 34: ...dum utility to configure this module IOCONFIG Addendum uses menu based screens for configuration without having to set individual bits in particular locations Refer to your 6200 software literature for details Important It is strongly recommended that you use IOCONFIG Addendum to configure this module The IOCONFIG Addendum utility greatly simplifies configuration If the IOCONFIG Addendum is not av...

Страница 35: ...to 870 C 200 ohm Pt a 0 00385 Euro 200 to 400 C 100 ohm Pt a 0 003916 U S 200 to 630 C 200 ohm Pt a 0 003916 U S 200 to 400 C 100 ohm Nickel a 0 00618 60 to 250 C 200 ohm Nickel a 0 00618 60 to 200 C 120 ohm Nickel a 0 00672 80 to 320 C 10 ohm Copper a 0 00427 200 to 260 C Thermocouple Type Sensor type for channels 0 through 3 Sensor type for channels 4 through 7 mV default B 300 to 1800 C 572 to ...

Страница 36: ...its Thermocouple RTD Input Module 1794 IRT8 Image Table Mapping Thermocouple RTD mV Input Module 1794 IRT8 Read Words Module Image I O Image Input Data Channel 0 Input Data Channel 1 Input Data Channel 2 Input Data Channel 3 Input Data Channel 4 Input Data Channel 5 Input Data Channel 6 Input Data Channel 7 Underrange Input Size Output Size 0 to 4 Words 1 to 11 Words Overrange Diagnostics CJC Alar...

Страница 37: ... channel s minimum range Bit 00 corresponds to channel 0 bit 01 corresponds to channel 1 etc 08 15 10 17 Overrange bits these bits are set if 1 the input signal is above the input channel s maximum range or 2 an open detector is detected Bit 08 10 corresponds to channel 0 bit 09 11 corresponds to channel 1 etc Read Word 9 00 03 Diagnostic bits represent module configuration and or hardware errors ...

Страница 38: ... 0 3 Sensor Mode Ch 0 3 Sensor Mode Ch 0 3 2 RTD Offset Ch 7 RTD Offset Ch 6 RTD Offset Ch 5 RTD Offset Ch 4 RTD Offset Ch 3 RTD Offset Ch 2 RTD Offset Ch 1 RTD Offset Ch 0 3 Cmd Flag EDT command EDT command data Word Dec Bits Octal Bits Description Write Word 0 00 02 Input Filter Cutoff bits Bit 02 01 00 Definition 0 0 0 Hardware filtering only default filtering 0 0 1 40Hz 0 1 0 10Hz 0 1 1 4Hz 1 ...

Страница 39: ...0 7 0 0 0 0 C 0 0 0 1 F 0 0 1 0 K 0 0 1 1 32767 to 32767 0 1 0 0 0 to 65535 0101 through 1111 not used Bits 12 15 14 17 Not used Write Word 1 Bits 00 03 Sensor Type Thermocouple or RTD RTD Type Bit 03 02 01 00 Sensor type for channels 0 through 3 0 0 0 0 Resistance default 0 0 0 1 100 ohm Pt α 0 00385 Euro 200 to 870 C 0 0 1 0 200 ohm Pt α 0 00385 Euro 200 to 400 C 0 0 1 1 100 ohm Pt α 0 003916 U ...

Страница 40: ... C 58 to 3214 F 1 0 0 0 S 50 to 1768 C 58 to 3214 F 1 0 0 1 T 270 to 400 C 454 to 752 F 1010 through 1111 not used Bits 04 05 Sensor Mode Select bits Bit 05 04 Sensor mode select for channels 0 3 Thermocouple 0 0 External compensation uses cold junction sensor 0 1 Internal compensation uses the value selected for reference junction 1 0 No compensation Data is referenced to 0 C 1 1 Differential mea...

Страница 41: ...annels 4 through 7 0 0 0 0 mV default 0 0 0 1 B 300 to 1800 C 572 to 3272 F 0 0 1 0 E 270 to 1000 C 454 to 1832 F 0 0 1 1 J 210 to 1200 C 346 to 2192 F 0 1 0 0 K 270 to 1372 C 454 to 2502 F 0 1 0 1 L 200 to 800 C 328 to 1472 F 0 1 1 0 N 270 to 1300 C 450 to 2372 F 0 1 1 1 R 50 to 1768 C 58 to 3214 F 1 0 0 0 S 50 to 1768 C 58 to 3214 F 1 0 0 1 T 270 to 400 C 454 to 752 F 1010 through 1111 not used ...

Страница 42: ...r one of three fixed values for all channels NOTE Not applicable to 10Ω copper RTD which defaults to 0Ω Bit 01 00 RTD channel 0 Bit 03 02 RTD channel 1 Bit 05 04 RTD channel 2 Bit 07 06 RTD channel 3 Bit 09 08 RTD channel 4 Bit 11 10 RTD channel 5 Bit 13 12 RTD channel 6 Bit 15 14 RTD channel 7 0 0 Use channel loop compensation value stored during calibration procedure for 2 wire RTD default 0Ω 0 ...

Страница 43: ...Publication 1794 6 5 12 November 1997 4 10 Writing Configuration to and Reading Status from Your Module with a Remote I O Adapter Allen Bradley PLCs ...

Страница 44: ...Manager Software User Manual publication 1787 6 5 3 Polled I O Structure Output data is received by the adapter in the order of the installed I O modules The Output data for Slot 0 is received first followed by the Output data for Slot 1 and so on up to slot 7 The first word of input data sent by the adapter is the Adapter Status Word This is followed by the input data from each slot in the order ...

Страница 45: ...and then powered back up 15 Bit 0 1 2 3 4 5 6 7 8 10 through 15 I O Module Fault Bits Node Address Changed Bit Slot 0 Slot 1 Slot 2 Slot 3 Slot 4 Slot 5 Slot 6 Slot 7 9 I O State Bit Not Used Bit Description Bit Explanation I O Module Fault 0 This bit is set 1 when an error is detected in slot position 0 1 This bit is set 1 when an error is detected in slot position 1 2 This bit is set 1 when an e...

Страница 46: ...he selection influences the A D output data rate thus affecting system throughput Mapping Data into the Image Table FLEX I O Thermocouple RTD input module data table mapping is shown below Thermocouple RTD Input Module 1794 IRT8 Image Table Mapping Module Image I O Image Input Data Channel 0 Input Data Channel 1 Input Data Channel 2 Input Data Channel 3 Input Data Channel 4 Input Data Channel 5 In...

Страница 47: ...verrange Alarm Bits channel 0 bit 08 etc Underrange Alarm Bits channel 0 bit 00 etc 10 Flt Alm Ch7 Flt Alm Ch6 FltAlm Ch5 FltAlm Ch4 FltAlm Ch3 FltAlm Ch2 FltAlm Ch1 Flt Alm Ch0 CJC 2 Alm CJC 1 Alm Diagnostic Status 11 EDT command response EDT response data Decimal Octal 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00 Word Write 1 Data Format Flt Mod...

Страница 48: ...nge or 2 an open detector is detected Bit 08 10 corresponds to channel 0 bit 09 11 corresponds to channel 1 etc Read Word 10 00 03 Diagnostic bits represent module configuration and or hardware errors Bit 03 02 01 00 0 0 0 0 Reserved for factory use 0 0 1 0 Improper module configuration 0001 and 0011 thru 1111 Reserved for factory use 04 Not used 05 06 Cold junction compensation alarm bits These b...

Страница 49: ...on Sets a fixed reference junction to compensate all thermocouple channels Bit 05 04 03 Reference Junction 0 0 0 0 C 0 0 1 20 C 0 1 0 25 C 0 1 1 30 C 1 0 0 40 C 1 0 1 50 C 1 1 0 60 C 1 1 1 70 C Bits 06 07 Fault Mode bits when a bit is set 1 fault mode is enabled for that channel Bit 06 corresponds to channels 0 3 bit 07 corresponds to channels 4 7 0 disabled 1 enable wire off detection Bits 08 11 ...

Страница 50: ...1 0 1 100 ohm Nickel 60 to 250 C 0 1 1 0 200 ohm Nickel 60 to 200 C 0 1 1 1 120 ohm Nickel 80 to 320 C 1 0 0 0 10 ohm Copper 200 to 260 C 1001 through 1111 not used Bits 00 03 Thermocouple Type Bit 03 02 01 00 Sensor type for channels 0 through 3 0 0 0 0 mV default 0 0 0 1 B 300 to 1800 C 572 to 3272 F 0 0 1 0 E 270 to 1000 C 454 to 1832 F 0 0 1 1 J 210 to 1200 C 346 to 2192 F 0 1 0 0 K 270 to 137...

Страница 51: ...ld junction sensor 0 1 Internal compensation uses the value selected for reference junction 1 0 No compensation Data is referenced to 0 C 1 1 Differential measurement between 2 channels RTD 0 0 2 wire RTD no compensation 0 1 2 wire RTD with loop resistance compensation 1 0 3 wire RTD 1 1 4 wire RTD Bits 06 07 Input Type Select Bit 07 06 Input type selection for channels 0 3 0 0 Thermocouple 0 1 RT...

Страница 52: ...type for channels 4 through 7 0 0 0 0 mV default 0 0 0 1 B 300 to 1800 C 572 to 3272 F 0 0 1 0 E 270 to 1000 C 454 to 1832 F 0 0 1 1 J 210 to 1200 C 346 to 2192 F 0 1 0 0 K 270 to 1372 C 454 to 2502 F 0 1 0 1 L 200 to 800 C 328 to 1472 F 0 1 1 0 N 270 to 1300 C 450 to 2372 F 0 1 1 1 R 50 to 1768 C 58 to 3214 F 1 0 0 0 S 50 to 1768 C 58 to 3214 F 1 0 0 1 T 270 to 400 C 454 to 752 F 1010 through 111...

Страница 53: ...ble to 10Ω copper RTD which defaults to 0Ω Bit 01 00 RTD channel 0 Bit 03 02 RTD channel 1 Bit 05 04 RTD channel 2 Bit 07 06 RTD channel 3 Bit 09 08 RTD channel 4 Bit 11 10 RTD channel 5 Bit 13 12 RTD channel 6 Bit 15 14 RTD channel 7 0 0 Use channel loop compensation value stored during calibration procedure for 2 wire RTD default 0Ω 0 1 5Ω 1 0 10Ω 1 1 15Ω Write Word 4 00 07 Extended data table c...

Страница 54: ...le by reducing the number of words mapped into the adapter module as shown in real time sizes Real time sizes are the settings that provide optimal real time data to the adapter module Analog modules have 15 words assigned to them This is divided into input words output words You can reduce the I O data size to fewer words to increase data transfer over the backplane For information on using Devic...

Страница 55: ...Publication 1794 6 5 12 November 1997 5 12 How Communication Takes Place and I O Image Table Mapping with the DeviceNet Adapter Allen Bradley PLCs ...

Страница 56: ...ccomplished using any of the following methods manual calibration as described below 6200 I O CONFIGURATION software refer to your 6200 software publications for procedures for calibrating DeviceNetManager Software refer to your DeviceNet Manager software documentation for the DeviceNet Adapter Module Cat No 1794 ADN Important You must use a 1794 TB3G or TB3GS terminal base when calibrating this m...

Страница 57: ...e module 1 Apply a reference to the desired input s 2 Send a message to the module indicating which inputs to read and what calibration step is being performed offset 3 The module will return a BTR which echoes back the message sent in the BTW word The module stores this input data 4 Apply a second reference signal to the module 5 Send a second message indicating which inputs to read and what cali...

Страница 58: ...set and gain calibration Connect to terminals 2 6 10 14 19 23 27 and 31 Connect to terminals 3 7 11 15 20 21 28 and 32 Connect one 10K ohm 0 5 resistor across terminals 37 and 39 and another across 46 and 48 Type of Input Connect the following H L Shield1 RTD 4 wire 1a 2a 1 2 Millivolt 1 2 1 Terminals 37 38 and 39 and 46 47 and 48 are for cold junction compensation with 38 and 47 chassis GND RTD o...

Страница 59: ... Ch 3 RTD Offset Ch 2 RTD Offset Ch 1 RTD Offset Ch 0 3 EDT command EDT command data Decimal 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 Octal 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00 Word Read 0 Channel 0 Input Data 1 Channel 1 Input Data 2 Channel 2 Input Data 3 Channel 3 Input Data 4 Channel 4 Input Data 5 Channel 5 Input Data 6 Channel 6 Input Data 7 Channel 7 Input Data 8 Overrange...

Страница 60: ...input 1 0 mV 0 15 6 gain 64 input 4 0 mV 0 15 7 gain 128 input 2 0 mV 0 15 8 15 not used 6 Gain Calibration by Channel 0 15 0 gain 1 input 320 mV 0 15 1 gain 2 input 320 mV 0 15 2 gain 4 input 110 mV 0 15 3 gain 8 input 70 mV 0 15 4 gain 16 input 29 mV 0 15 5 gain 32 input 19 mV 0 15 6 gain 64 input 4 0 mV 0 15 7 gain 128 input 2 0 mV 0 15 8 15 not used 36 24 Calibration all Channels General Calib...

Страница 61: ...he module with the appropriate value in BTW word 3 bits 00 15 as shown above 4 Monitor the block transfer read word 10 bits 00 15 for an echo of the EDT command 1 7 gain 128 input 2 0 mV 1 8 15 not used Gain Calibration all Channels 2 0 gain 1 input 320 mV 2 1 gain 2 input 320 mV 2 2 gain 4 input 110 mV 2 3 gain 8 input 70 mV 2 4 gain 16 input 29 mV 2 5 gain 32 input 19 mV 2 6 gain 64 input 4 0 mV...

Страница 62: ...al terminals together and attach to the negative lead 2 Apply power to the module for 20 minutes before calibrating 3 After the connections stabilize send a block transfer write with the corresponding EDT command for your input to the module 4 Monitor the block transfer read word 10 bits 00 15 for an echo of the EDT command If the BTR word reads 80FF hex repeat the BTW Make sure that sufficient ti...

Страница 63: ...odule to respond to your request 5 Connect a 100 ohm 0 01 resistor across H and L of each input channel 8 resistors Repeat steps 3 and 4 using a BTW value of 2402 hex 6 When all calibrations are successful proceed to the cold junction calibration Cold Junction Calibration Both cold junction compensation inputs must be calibrated together To calibrate both at once proceed as follows 1 Connect a 10 ...

Страница 64: ...0 to 630 C 200 ohm Pt α 0 00385 Euro 200 to 400 C 200 ohm Pt α 0 003916 U S 200 to 400 C 100 ohm Nickel α 0 00618 60 to 250 C 120 ohm Nickel α 0 00672 80 to 320 C 200 ohm Nickel α 0 00618 60 to 200 C 10 ohm Copper α 0 00427 200 to 260 C Resolution 14 bits Accuracy vs filter Cutoff 0 2Hz 0 05 of full range in millivolt mode 0 5Hz 0 05 of full range in millivolt mode 1 0Hz 0 05 of full range in mill...

Страница 65: ...l dc Power Supply Voltage Voltage Range Supply Current 24V dc nominal 19 2 to 31 2V dc includes 5 ac ripple 85mA 24V dc General Specifications Dimensions Inches Millimeters 1 8H 3 7W 2 1D 45 7 94 0 53 3 Environmental Conditions Operational Temperature Storage Temperature Relative Humidity Shock Operating Non operating Vibration 0 to 55 C 32 to 131 F 40 to 85 C 40 to 185 F 5 to 95 noncondensing ope...

Страница 66: ... periodic 6 1 preparation 6 2 setups 6 3 tools 6 2 types of 6 1 using resistors 6 3 calibration words 6 5 CE compliance 2 1 cold junction calibration 6 9 commands EDT 6 6 EDT command data 6 6 communication between module and adapter 1 2 block transfers 3 1 compatible terminal bases 2 9 configurable features 4 1 connecting wiring 2 9 6 3 considerations pre installation 2 1 curent draw through base ...

Страница 67: ...rocessor 3 2 PLC5 family processor 3 3 PLC5 250 processor 3 4 preparing for calibration 6 2 R range selecting 4 2 read write words for calibration 6 5 removing and replacing under power RIUP 2 8 RTD analog input mapping 1794IR 4 3 RTD wiring example 2 12 S sensor types 4 2 software DeviceNetManager 5 1 specifications A 1 status indicators 2 13 system throughput 5 3 T TC RTD mV input mapping 1794IR...

Страница 68: ... manual accessibility info not in manual text illustration Technical Accuracy Completeness What information is missing Clarity Sequence What is not in the right order What is unclear Other Comments Use back for more comments Your Name Location Phone Return to Marketing Communications Allen Bradley Co 1 Allen Bradley Drive Mayfield Hts OH 44124 6118Phone 216 646 3176 FAX 216 646 4320 Publication IC...

Страница 69: ... IN THE UNITED STATES BUSINESS REPLY MAIL FIRST CLASS MAIL PERMIT NO 18235 CLEVELAND OH POSTAGE WILL BE PAID BY THE ADDRESSEE TECHNICAL COMMUNICATION 1 ALLEN BRADLEY DR MAYFIELD HEIGHTS OH 44124 9705 3 6 5 0 2 9 PLEASE FASTEN HERE DO NOT STAPLE Allen Bradley PLCs ...

Страница 70: ... and 24 hour emergency hotline software and documentation updates technical subscription services Engineering and Field Services application engineering assistance integration and start up assistance field service maintenance support Technical Training lecture and lab courses self paced computer and video based training job aids and workstations training needs analysis Repair and Exchange Services...

Страница 71: ...Publication 1794 6 5 12 November 1997 PN 955128 51 1997 Rockwell International All Rights Reserved Printed in USA Allen Bradley PLCs ...

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