Siemens SIMATIC NET SCALANCE M826 Operating Instructions Manual page 47

Note
Interference pulse
To avoid evaluating an interference pulse, the pulse for the signal 1 (TRUE / HIGH) must be at
least 200 ms.
Rules for wiring
• To wire the digital input/output, use a copper cable of category AWG18-16 or a cable with a
cross-section of 0.75 to 1.5 mm
• Always wire the digital input/output in pairs.
• The maximum permitted cable length is 30 m.
Digital input
The 2-pin terminal block has the following assignment:
SCALANCE M826
Operating Instructions, 10/2022, C79000-G8976-C362-07
.
2
Connecting up
5.4 Digital input/output
47