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Siemens S7-300 - 4.2 Addressing the Channels

Siemens S7-300
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Wiring the FM 352
5.4 Terminal assignment of the front connector
FM 352 electronic cam controller
Operating Instructions, 05/2011, A5E01071724-03
33
4 digital inputs (I0 to I3)
You can connect bounce-free switches (24 V current sourcing) or non-contact sensors (2- or
3-wire proximity switches) to the 4 digital inputs.
The digital inputs are not monitored for short circuits or wire break and have a non-isolated
connection to the module chassis.
13 digital outputs (Q0 to Q12)
The state (on/off) of tracks 0 to 12 is output at 13 digital outputs. The digital outputs have a
non-isolated connection to the module chassis.
Loads supported:
Operating voltage 24 V
Current load 0.5 A / short-circuit proof
The state of each output can be read off from the respective LED.

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