Allen-Bradley GuardPLC 1753, Safety Reference Manual

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80 Publication 1753-RM002C-EN-P - September 2008
Chapter 7 GuardPLC Controller Operating System
Parameters of the
Automation System
The following parameters determine the operating behavior of the
automation system and are set in RSLogix Guard PLUS! software.
The available options when using RSLogix Guard PLUS! software in
the safety operation of the automation system are determined here
and in the safety parameter preset.
The settings possible for safety operation are not inflexibly bound to a
certain requirement class. However, they must be available to the
applicable approving board for every implementation of the
automation system.
Operating Behavior Parameters
Safety Parameter CPU Setting for Safety Operation
Safety time in ms Depends on process
Watchdog time in ms Max. 50% of the safety time
Start/Restart Reset/Off (can only be set to OFF in RUN
mode of the CPU)
Force Enable (forcing) Reset/off
Activate/Deactivate forcing in Force-Editor
Window
(1)
Reset/off
Main Enable (modification of the safety
parameters)
(1)
Reset/Off (can only be set to OFF in RUN
mode of the CPU)
Test Mode
(1)
(1)
You cannot set this on distributed I/O modules, except for 1753-0IB20XOB8.
Reset/off