Rockwell Automation AADvance Controller Configuration Guide - Manual (Page 97)

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Document: 553633
ICSTT-RM405f-EN-P
Issue 07
4-57
Description:
Defines whether the value of the RTC program variable named Seconds should be
applied to the real-time clock the next time the RTC control variable named RTC
Write is set to TRUE.
Note: The RTC program variable is only updated if the RTC control variable RTC
Read is set to TRUE and all other RTC Control Variables are set to TRUE.
RTC Control: Milliseconds
Direction: output from application to controller
Type: boolean
Values:
 TRUE = RTC program milliseconds will be applied by RTC Write.
 FALSE = RTC program milliseconds will be ignored.
 Default FALSE until an initial value is specified in the application.
Description:
Defines whether the value of the RTC program variable named Milliseconds should
be applied to the real-time clock the next time the RTC control variable named RTC
Write is set to TRUE.
Note: The RTC program variable is only updated if the RTC control variable RTC
Read is set to TRUE and all other RTC Control Variables are set to TRUE.
Set the Processor Clock
To set the processor clock you can use the RTC variables:
1) To monitor the time wire variables to all the RTC Status points.
2) To configure the time to be set, wire variables to the RTC Program points:

Hours

Minutes

Seconds
3) Preset all RTC Program variables to the time that is to be programmed:

It is recommended that you set a time of 03:00. Do not set the time to
midnight or a slow clock will always be set back 24 hours.
4) To control the time setting, wire variables to the RTC Control points:

RTC Write

RTC Read
5) Wire Variables to RTC Control:

Hours

Minutes

Seconds