Configuring the safety program
7.7 Passivation and reintegration of input/output channels
The second acknowledge button, "reset (9)", appears if the "Q" output of the F_QUITES
block has been set. This output remains set for 60 seconds.
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Compendium Part B - Process Safety (V8.2)
Operating Manual, 07/2016, A5E35031794-AB