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  1. alexsanchez
  2. PLCnext Engineer
  3. Friday, 09 October 2020

After a project is loaded to PLC and ran for a few days, the RTC_TYPE system variable may display the correct clock (date and time) but the RTC_S and PBCL_DateTimeGet_1 display a time that is 19 hours behind. The discrepancy is corrected after rebooting PLC.

Why does this happen? How to prevent?

Martin PLCnext Team Accepted Answer Pending Moderation
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Hi Alex,

Can you please tell us the PLC model (e.g. AXC F 2152) and the firmware version you are using?

There have been issues reported similar to the one you describe, which were addressed in firmware version 2020.6.

~ Martin.

Phoenix Contact Electronics Headquarters - PLCnext Runtime Product Management and Support

alexsanchez Accepted Answer Pending Moderation
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Thanks Martin.

 

PLC: AXC F 2152

PLCNextEngineer: 2020.3

PLC FW: 2020.3

 

Again, I think I posted on wrong forum.

 

Thanks!

Martin PLCnext Team Accepted Answer Pending Moderation
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Hi Alex,

(The PLCnext Engineer topic is the correct one in this case, since the problem appears in the PLCnext Engineer Function Blocks RTC_S and PBCL_DateTimeGet_1).

Since you are not using an LTS version of the firmware, the recommendation in this case is to upgrade to the very latest firmware version (2020.6.1), since that version includes bug fixes that will probably solve this issue.

If you see the same issue with FW 2020.6.1, please let us know.

~ Martin.

Phoenix Contact Electronics Headquarters - PLCnext Runtime Product Management and Support

  1. one week ago
  2. PLCnext Engineer
  3. # 3
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