Substitute Value Behavior - Siemens SIMATIC ET 200S M151-3 PN Manual

Interrupt, error, and system messages

4.3 Substitute value behavior

4.3 Substitute value behavior
Substitute value behavior
In the IM 151-3 PN HIGH FEATURE station the substitute value behavior is effected slot-
granularly specifically by controller.
The respective output behaves in accordance with its configured substitute value behavior:
● "De-energized / power down"
● "Output substitute value"
● "Retain last value"
The substitute value behavior is triggered in the following cases:
● Stop controller
● Controller failure (communication interruption)
● FW update
● Reset to factory settings
● Failure of two or more modules in the station
Note
Reduction of a configuration
If you reduce the configuration of the station and load the configuration into the CPU, the
modules that are no longer configured but still exist in the station retain their original
substitute value behavior until the supply voltage at the power module or at the interface
module is interrupted.
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Interface module IM151-3 PN HIGH FEATURE (6ES7151-3BA23-0AB0)
Manual, 08/2010, A5E01584258-04