Siemens SIMATIC ET 200X - EM 144 AI 2 RTD Expansion Module (6 ES7 144-1 JB31-0 XB0); Pinout of the Sockets for 2-Channel Analog Inputs (Pt 100)

Technical Specifications
7-120
ET 200X Distributed I/O Device
EWA 4NEB 780601602-06
7.21.12 EM 144 AI 2 RTD expansion module
(6ES7 144-1JB31-0XB0)
Features
The EM 144 AI 2  RTD expansion module with the order number
6ES7 144-1JB31-0XB0 has the following features:
 2 inputs for Pt 100 resistance thermometer (2 channels with the same
measuring range and data format)
 Input range for Pt 100
 Resolution of 12 bits plus sign
 24 VDC supply voltage
 Non-isolated
 Parameterizable diagnostic interrupt
 Parameterizable hardware interrupt
 Parameterizable diagnostics
 SF LED
Pinout of the sockets for AI
The following table shows the pinout of the two sockets used to connect the analog
inputs. You can find the layout of the sockets in Appendix C.
Table 7-65 Pinout of the sockets for 2-channel analog inputs (Pt 100)
Pin Assignment of socket X1 Assignment of socket X2 Front view of
socket
(Front view)
1 Sensor supply output current (approx. 1 mA)
2 Input signal ”+”, channel 0 Input signal ”+”, channel 1
2
3 Chassis ground, power supply
1
3
4 Input signal ”–”, channel 0 Input signal ”–”, channel 1
4