Rockwell Automation 1762-IR4 RTD/Resistance Input Module - Manual (Page 16)

Publication 1762-UM003A-EN-P - February 2003
1-6 Overview
Hardware Features The RTD/resistance module provides connections for four 3-wire
inputs for any combination of RTD and resistance input devices.
Channels are wired as differential inputs. The illustration below shows
the hardware features of the module.
General Diagnostic Features
A single diagnostic LED helps you identify the source of problems that
may occur during power-up or during normal channel operation. The
LED indicates both status and power. See Chapter 4, Diagnostics and
Troubleshooting, for details on power-up and channel diagnostics.
9
3
5
2
1b
1a
7
6
4
8
6
1a
1b
2
Item Description
1a upper panel mounting tab
1b lower panel mounting tab
2 power diagnostic LED
3 module door with terminal identification label
4 bus connector with male pins
5 bus connector cover
6 flat ribbon cable with bus connector (female)
7 terminal block
8 DIN rail latch
9 pull loop