Module addressing – Rockwell Automation 1746-INT4 Thermocouple/MV Isolated/ User Manual User Manual

Page 14

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Publication 1746-UM614B-EN-P - September 2007

14 Module Overview

Module Addressing

The module requires eight words each in the SLC processor’s input
and output image tables. Addresses for the module in slot e are as
follows:

I:e.0…3 thermocouple/mV data for channels 0…3, respectively
I:e.4…7 status data for channels 0…3, respectively
O:e.0…3 configuration data for channels 0…3, respectively
O:e.4…7 reserved for future use. Do not use.

Compatibility with Thermocouple and Millivolt Devices and
Cables

The module is compatible with the following NBS MN-125 and -161
standard types of thermocouples: B, C, D, E, J, K, N, R, S, and T and
extension wire. The module is also compatible with a variety of mV
devices with an output of ±50 or ±100 mV.

Refer to Appendices A and C for details.

To minimize interference from radiated electrical noise, we
recommend twisted-pair and highly shielded cables.

Minimizing Interference Devices

For This Type of Device

We Recommend This Cable (or equivalent)

Thermocouple type J

EIL Corp. J20-5-502

Thermocouple type K

EIL Corp. K20-5-510

Thermocouple type T

EIL Corp. T20-5-502

Other thermocouple types

Consult with EIL Corp or other manufacturers

Millivolt devices

Alpha Suprashield XTRA-GUARD 1
5121 (1pr), 5122 (2pr), 5131 (3pr), 5141 (4pr)

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