● Channels can be deactivated for certain F-I/O (e.g. failsafe modules ET 200SP or failsafe
modules S7-1500/ET 200MP). Only address channels (channel value and value status) that
are activated in the hardware configuration. If you address channels, which are deactivated
in the hardware configuration, then when compiling the safety program, an alarm is output.
● For certain F-I/O (e.g. failsafe modules ET 200SP or failsafe modules S7-1500/ET 200MP),
a "1oo2 (2v2) evaluation of the encoder" can be set. In so doing, two channels are grouped
together to create a channel pair, and the result of the "1oo2 (2v2) evaluation of the encoder"
is generally made available under the address of the channel with the lower channel number
(see the corresponding manuals for the F-I/O). Only address this channel (channel value
and value status) of the channel pair. If you address the other channel, then an alarm is
output when compiling the safety program.
Additional information
Additional information is provided in the help for SIMATIC STEP 7 Safety Advanced in the
following chapters:
● Data transfer from the safety to the standard user program
(Information on updating the process image)
● Safety-relevant I-slave-slave communication - F-I/O access
Also observe the documentation on the relevant F-I/O - as well as on the safety-relevant drive
telegrams.
Safety program of the F-PLC
3.12 Access to Safety Integrated drives and F-I/O
Safety Integrated (with SINAMICS S120)
Commissioning Manual, 02/2020, A5E46305916B AB 85
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