Reaction To Cpu Stop - Siemens SIMATIC S7-1500 Manual

Configuring/address space
4.3 Manual operation (without technology object)
4.3.2

Reaction to CPU STOP

Reaction to CPU STOP
You set the reaction of the technology module to a STOP of the CPU on a channel-by-
channel basis in the basic parameters of the device configuration.
Table 4- 10
Option
Continue operation
Output substitute value
Keep last value
54
Reaction of technology module to CPU STOP
Meaning
The technology module remains fully functional. Incoming count
pulses are processed or the position value is read in. The digital
outputs continue to switch according to the parameter assignment.
The technology module outputs the configured substitute values at
the digital outputs until the next CPU STOP-RUN transition.
The technology module is returned to its startup state after a
STOP-RUN transition: The counter value is set to the Start value
(with incremental encoders or pulse encoders) and the digital out-
puts switch according to the parameter assignment.
The technology module outputs the values at the digital outputs
that were valid when the transition to STOP took place until the
next CPU STOP-RUN transition.
If a digital output with the "At comparison value for a pulse dura-
tion" function is set at CPU STOP, the digital output is reset after
the pulse duration elapses.
The technology module is returned to its startup state after a
STOP-RUN transition: The counter value is set to the Start value
(with incremental encoders or pulse encoders) and the digital out-
puts switch according to the parameter assignment.
Technology module TM PosInput 2 (6ES7551-1AB00-0AB0)
Manual, 06/2018, A5E03982218-AB