50 Rockwell Automation Publication ICSTT-RM406J-EN-P - February 2021
Chapter 5 Troubleshooting and Rectifying Module Faults
• RTC Control: Month
• RTC Control: Day of Month
•RTC Control: Hours
• RTC Control: Minutes
• RTC Control: Seconds
• RTC Control: Milliseconds
RTC Status Variables (All Word Inputs)
•RTC Status: Year
• RTC Status: Month
• RTC Status: Day of Month
• RTC Status: Hours
• RTC Status: Minutes
• RTC Status: Seconds
• RTC Status: Milliseconds
RTC Program Variables
•RTC Program: Year
• RTC Program: Month
• RTC Program: Day of Month
• RTC Program: Hours
• RTC Program: Minutes
• RTC Program: Seconds
• RTC Program: Milliseconds
Procedure to Check the Current Date and Time
1. Wire the processor variables. Refer to the topic "Wire Processor
Variables".
2. Build and download the program or perform an on-line update.
3. Check the current date and time settings:
•Enter Debug mode
• Request IXL Restricted Access
•Force the RTC Read Boolean and all the time fields in the RTC Control
Variables to TRUE
• The RTC Status Variables will show the current date and time in the
processor
Procedure to Set the Date and Time
1. Unlock the RTC Read variable so it turns FALSE.
2. Select each RTC Program variable and enter the date and time values.
3. Toggle the RTC Write variable TRUE then FALSE to write the new date
and time setting to the processor.
4. Lock and force the RTC Read variable to TRUE.
5. The RTC Status now displays the new date and time of the processor.
6. Unlock all the RTC Control variables.
IMPORTANT
Do not force the RTC Write Boolean at this point.
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