Rockwell Automation 1756-IH16ISOE ControlLogix Sequence of Events Module - Manual (Page 149)

1 Publication 1756-UM528A-EN-P - April 2004
Glossary
Absolute time
Time represented in an easily understood format (i.e., Gregorian
format). You must use the 1756HP-GPS module to convert timestamps
to absolute time. In this format, time is represented in year, month,
day, hour, minute, second and microsecond.
Communications format
Format that defines the operational mode used on the Sequence of
Events and, consequently, the type of information transferred
between the module and its owner-controller. This format also
defines the tags created for each the module.
Compatible match
An electronic keying protection mode that requires that the
physical module and the module configured in the software to
match according to vendor and catalog number. In this case, the
minor revision of the module must greater than or equal to that of
the configured slot.
Connection
The communication mechanism from the controller to another
module in the control system.
ControlLogix backplane
The backplane used by the 1756 chassis.
Coordinated system time (CST)
Timer value which is kept synchronized for all modules within a
single ControlBus chassis
CST Per Point
Operating mode on the Sequence of Events module in which the
module timestamps up to 2 input transitions per input, one for OFF to
ON transitions and another for ON to OFF transitions.
Current event
Event for which the Sequence of Events module is currently
producing data