Rockwell Automation 1756-SYNCH ControlLogix SynchLink Module User Manual - Manual (Page 137)

Publication 1756-UM521C-EN-P - July 2004
Glossary 5
Synchronize
A process where multiple devices operate at the same time or
maintain a matching time reference.
Time master
A device (e.g. SynchLink module) that is configured to establish the
time reference for a ControlLogix chassis or SynchLink system.
Time relay
A device that is configured to pass a time reference between a chassis
backplane and a SynchLink fiber.
Time slave
A device (e.g. SynchLink module) that is configured to receive the
time reference from the CST Time Master (located in a ControlLogix
chassis) or upstream node in a SynchLink system.
Timestamp
A ControlLogix process that stamps a change in input data with a time
reference of when the change occurred.
Transmit port communications format
The communications format used in a ControlLogix SynchLink module
for all data the module transmits on its fiber optic transmit port.