1.7.2.2.3 Electrical Connection
The CS31 bus module CI592-CS31 is plugged on the CS31 terminal unit TU551-CS31 or
TU552-CS31
Ä
Chapter 1.4.7 “TU551-CS31 and TU552-CS31 for CS31 Communication Inter-
face Modules” on page 168. Hereby, it clicks in with two mechanical locks. The terminal unit is
mounted on a DIN rail or with 2 screws plus the additional accessory for wall mounting (TA526
Ä
Chapter 1.8.2.4 “TA526 - Wall Mounting Accessory” on page 1152).
For a detailed description of the mounting, disassembly and electrical connec-
tion of the module, please refer to the System Assembly, Construction and Con-
nection chapter
Ä
Chapter 2.6 “AC500 (Standard)” on page 1248.
The electrical connection is carried out by using the 40 terminals of the terminal unit TU551-
CS31/TU552-CS31. It is possible to replace the CI592-CS31 without loosening the wiring.
The assignment of the terminals:
Terminal Signal Description
1.0 R1 Integrated termination resistors for CS31-Bus,
Terminal 1
1.1 R2 Integrated termination resistors for CS31-Bus,
Terminal 2
1.2 B1 CS31-Bus, bus line 1
1.3 B2 CS31-Bus, bus line 2
1.4 FE Functional earth
1.5 B1 CS31-Bus, bus line 1
1.6 B2 CS31-Bus, bus line 2
1.7 FE Functional earth
1.8 UP Process voltage UP (24 VDC)
1.9 ZP Process voltage ZP (0 VDC)
2.0 DI0 Signal of the digital input DI0
2.1 DI1 Signal of the digital input DI1
2.2 DI2 Signal of the digital input DI2
2.3 DI3 Signal of the digital input DI3
2.4 DI4 Signal of the digital input DI4
2.5 DI5 Signal of the digital input DI5
2.6 DI6 Signal of the digital input DI6
2.7 DI7 Signal of the digital input DI7
2.8 UP Process voltage UP (24 VDC)
2.9 ZP Process voltage ZP (0 VDC)
3.0 AI0+ Plus pole of analog input signal 0
3.1 AI1+ Plus pole of analog input signal 1
3.2 AI2+ Plus pole of analog input signal 2
3.3 AI3+ Plus pole of analog input signal 3
3.4 AI- Minus pole of analog input signals 0 to 3
3.5 AO0+ Plus pole of analog output signal 0
3.6 AO1+ Plus pole of analog output signal 1
Communication Interface Modules (S500) > CS31
2019/04/173ADR010121, 13, en_US780
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