User manual

Publication 1756-RM093F-EN-P - January 2010 63
Safety Application Development Chapter 6
Inhibit a Module
You cannot inhibit or uninhibit Safety I/O modules or producer
controllers if the application is safety-locked or a safety task signature
exists.
Follow these steps to inhibit a specific Safety I/O module.
1. In RSLogix 5000 software, right-click the module and choose
Properties.
2. On the Module Properties dialog, click the Connection tab.
3. Check Inhibit Connection and click Apply.
The module is inhibited whenever the checkbox is checked. If a
communication module is inhibited, all downstream modules
are also inhibited.
Editing Your Safety
Application
The following rules apply to changing your Safety application in
RSLogix 5000 software:
• Only authorized, specially-trained personnel can make program
edits. These personnel should use all supervisory methods
available, for example, using the controller keyswitch and
software password protections.
• When authorized, specially-trained personnel make program
edits, they assume the central safety responsibility while the
changes are in progress. These personnel must also maintain
safe application operation.
• When editing online, you must use an alternate protection
mechanism to maintain the safety of the system.
• You must sufficiently document all program edits, including:
– authorization.
– impact analysis.
– execution.
– test information.
– revision information.