Rockwell Automation 1756-ENET/B ControlLogix Ethernet Communication Interface Module User Manual - Manual (Page 115)

1 Publication 1756-UM051B-EN-P - November 2000
Appendix
F
Electronic Keying
Specifying Electronic
Keying You specify electronic keying to ensure that a module being inserted
or configured is of the proper type and firmware revision.
ATTENTION
!
Be extremely cautious if you disable electronic
keying. If used incorrectly, this option can lead
to personal injury or death, property damage, or
economic loss.
Keying Description
“least” disable keying No attributes of the software or hardware are
required to match.
“moderate” compatible module The module must be compatible with the software
configuration. These characteristics must match:
•
module type
•
catalog number
•
major revision
The minor revision must be equal to or greater than
the one specified in the software.
“most” exact match The module must match the software configuration
exactly. These characteristics must match:
•
module type
•
catalog number
•
major revision
•
minor revision