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Siemens SIMATIC S7-1200 Manual Pemrograman Keselamatan
3 Methods for Safety Programming
3.11.2

Automatic reintegration

Depending on whether the respective module supports the "RIOforFA" standard
(see Chapter 5), you can implement automatic reintegration in different ways.
Automatic reintegration can lead to dangerous situations
If automatic reintegration is permissible for a certain process depends on the risk
assessment.
WARNING
NOTE
Automatic reintegration concerns F periphery/channel faults (e.g., discrepancy
faults, short-circuits). Communication faults require manual reintegration (see
chapter 3.11.3).
Modules that support "RIOforFA"
For modules that support "RIOforFA", you can parameterize automatic
reintegration either for the entire module or for single channels.
Figure 3-18: Parameterizing automatic reintegration
Modules that do not support "RIOforFA"
For modules that do not support "RIOforFA", program automatic reintegration in the
safety program. To do this, set the "ACK_REQ" tag of the respective F-I/O data
block to "false":
Figure 3-19: Programming automatic reintegration
Safety Programming Guideline
Entry ID: 109750255,
V1.0,
10/2017
36