Communications format -5 electronic keying -5, Se a communications format. for, Communications format – Rockwell Automation 1756-IH16ISOE ControlLogix Sequence of Events Module User Manual
Page 45: Electronic keying

Publication 1756-UM528A-EN-P - April 2004
Configuring the Sequence of Events Module 4-5
Communications Format
The communications format determines what operational mode
your Sequence of Events module uses and, consequently, what tags
RSLogix 5000 generates when configuration is complete. Once a
module is created, you cannot change the communications format
unless you delete and recreate the module.
Table 4.2 lists the communications formats used with input modules:
For more information on the Sequence of Events module’s
operational modes, see page 5-3.
Electronic keying allows the ControlLogix system to control what
modules belong in the various slots of a configured system.
During module configuration, you must choose one of the
following keying options for your Sequence of Events module:
• Exact Match
• Compatible Module
• Disable Keying
For more information on electronic keying, see page 5-13.
Table 4.2
If you want the Sequence of Events
module to operate in this mode
choose this communication format:
CST Per Point mode
CST Per Point
FIFO mode
CST FIFO Mode