Siemens SCALANCE MUM853-1 - Page 58

The voltage applied to the "DI" contact is converted to a digital status by the device as follows:
Voltage Status
-30 to +3 VDC 0
+13 to +30 VDC 1
Digital output
The 2-pin terminal block has the following assignment:
'2
'2
9
9
Contact Assignment
+DO Switching signal
Relay 24V DC / 0.5A
-DO Ground
The output is a switch that switches the signal at +DO to ‑DO.
Connection
6.6Digital input/output
SCALANCE MUM853-1
58 Operating Instructions, 03/2023, C79000-G8976-C650-05