Siemens SIMOCODE pro C System Manual page 210

Mounting, wiring, connecting, system interfaces, configuration guidelines
12.2 Wiring, connecting
Terminal assignment of the digital module
The following table shows the assignment of the removable terminals:
Table 12- 12 Pin assignment of the removable terminals of the digital module
Terminal Assignment
Upper terminals
20 Common potential for relay outputs 1
and 2
21 Relay output OUT1
22 Relay output OUT2
23 Digital input IN1
24 Digital input IN2
25 N / M for IN1 to IN4
Lower terminals
26 Digital input IN3
27 Digital input IN4
SPE System shielding
1)
1)
Note
Connect SIMOCODE pro via terminal SPE with the maximum possible cross-section and
with as short a cable as possible to the functional ground of the control cabinet, e.g. to the
grounded mounting plate of the control cabinet.
210
System Manual, 05/2019, A5E40507475002A/RS-AD/004
SIMOCODE pro