Rockwell Automation 2707-NP DTAM Programming Software - Manual (Page 112)

Chapter 14
Entering DTAM Configuration Data
14–6
Only available on the DTAM Plus with the Clock/Calendar option, this
setting controls synchronization between a DTAM Plus and a PLC-5 or SLC
controller. The time is synchronized between the DTAM Plus and controller
approximately every 60 seconds.
The time synchronization does not update when the DTAM is in the P-A/D
mode (see Appendix C) or while a data entry screen is displayed.
When you select Time Synchronization from the DPS Configuration - Option
Selection menu, the following is displayed:
The DTAM Plus Time Synchronization consists of two selections:
Select: To:
Read Time Set the DTAM Plus clock by reading the time and date from the
controller.
Write Time Write the DTAM Plus time/date settings to the controller. You can
write time data to a controller even if the controller does not have a
clock source.
The PLC-5 always writes the time to addresses S:18 through S:23. When
you read time or write time with an SLC, you are shown the current time
base register and are prompted to enter a new register value:
The time base register is the initial register of the sequential registers storing
the time. For example, if the time is stored in SLC registers N7:1 to N7:8,
the base register would be N7:1.
Time Synchronization