Procedure - Siemens SIMATIC S7 Functional Safety Manual

Getting started
2.1 Introduction to example
2.1.4

Procedure

The example in these Getting Started instructions consists of the following sections:
Configuring
For this example, you must configure the following S7-1200 fail-safe CPUs and SMs:
● Fail-safe CPU (CPU 1214FC or CPU 1215FC)
● Fail-safe CPU standard digital inputs for user acknowledgement, feedback loop, and start
pushbutton
● SM 1226 F-DI 16 x 24 VDC for connecting an emergency stop switch, the position
switches for monitoring a safety door, and the laser scanner for monitoring the entry area
● SM 1226 F-DQ 4 x 24 VDC for connecting a motor
The configuration is described in the "Configuring" (Page 30) section.
Programming
Once the configuration is successfully completed, you can program your safety program.
In our example, a fail-safe block is programmed with an emergency stop, a safety door
function, a feedback loop (as restart protection, when an incorrect load exists), and a user
acknowledgement for reintegration. The block is then compiled to form a safety program.
The programming is described in the "Programming" (Page 46) section.
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S7-1200 Functional Safety Manual
Manual, 02/2015, A5E03470344-AA