Configure a ControlNet Module
Rockwell Automation Publication CNET-UM001F-EN-P - February 2018 41
Important:
Changing Electronic Keying parameters online interrupts connections to the device
and any devices that are connected through the device. Connections from other
controllers can also be broken.
If an I/O connection to a device is interrupted, the result can be a loss of data.
Exact Match keying requires all keying attributes, that is, Vendor, Product
Type, Product Code (catalog number), Major Revision, and Minor Revision,
of the physical module and the module created in the software to match
precisely in order to establish communication. If any attribute does not match
precisely, I/O communication is not permitted with the module or with
modules connected through it, as in the case of a communication module.
Use Exact Match keying when you need the system to verify that the module
revisions in use are exactly as specified in the project, such as for use in
highly-regulated industries. Exact Match keying is also necessary to enable
Automatic Firmware Update for the module via the Firmware Supervisor
feature from a Logix 5000 controller.
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