Allen-Bradley 1732ES-IB12XOB4, User Manual, Page: 93 / 176

Rockwell Automation Publication 1791ES-UM001G-EN-P - November 2016 93
Chapter
6
Replace Guard I/O Modules
GuardLogix® controllers retain I/O module configuration onboard and are
able to download the configuration to the replacement module. Replacing a
safety I/O module that sits on a CIP Safety network is more complicated than
replacing standard devices because of the safety network number (SNN). The
module number and SNN constitute the DeviceID of the safety module.
Safety devices require this more complex identifier to make sure that duplicate
module numbers do not compromise communication between the correct
safety devices.
Manually Set the Safety
Network Number The following statement applies if a safety signature exists. The
POINT Guard I/O™ module must have a proper SNN/node number
identification that matches the module within the safety controller project
before it can receive its configuration. To keep integrity, the SNN setting of the
module is required to be a manual action. This manual action is to use the ‘set’
function on an out-of-box POINT Guard I/O module.
Figure 32 - Setting the SNN with a GuardLogix Controller
Topic Page
Manually Set the Safety Network Number 93
Reset the Module to Out-of-box Configuration 94
Replace a Module in a GuardLogix System 94