Getting started
2.3 Programming
S7-1200 Functional Safety Manual
50 Manual, 02/2015, A5E03470344-AA
Specifying inputs and outputs for the safety program
After configuring the hardware as described in Steps 1 to 4, the following fail-safe CPU and
SM DBs are available for programming the example:
Fail-safe CPU standard digital inputs CPU
IB0 PLC_1 [CPU 1214FC DC/DC/DC]
Fail-safe digital input module SM 1226 F-DI
16 x 24 VDC
IB8 F00008_SM 1226 F-DI 16 x 24 VDC
Fail-safe digital output module SM 1226 F-
IB16 F00016_SM 1226 F-DQ 4 x 24 VDC
Assign the following symbolic names for the fail-safe inputs and outputs:
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