KB90663
Published: August 17, 2023
Revision: 2.0

Energy accumulation and summation values not restored after reset or restart


Applies To:

Firmware for GRV-R7-I1VAPM-3

Versions Affected:

All versions prior to 3.5.0

Resolved In Version:

3.5.0


Symptoms:

The energy accumulation values (provided through channels 13-17, 31-35, and 49-53) and the energy summation values (provided through channels 54-62) are not automatically saved to non-volatile memory every 30 seconds as specified in the data sheet. If the module resets or you restart it, those values will be set to 0.

Workaround:

Do both the following in your control program:

  • At regular intervals, record the energy accumulation and summation values to persistent memory. For example, in PAC Control, save the values from those channels to persistent variables in a strategy. Another option is to write the values to a file that is saved to persistent memory.
  • Write back the values to the associated channels after module startup. Write the values back to the channels as 64-bit integer milliwatt-hour values through the memory map at area 0xF02F8000 (64-bit Counters—Read/Write area). For instructions on how to write values to the channels through the memory map, see OptoMMP Protocol Guide, section "Reading and Writing Energy Values in GRV-IVAPM-3 & GRV-R7-I1VAPM-3" (form 1465).

Resolution:

Opto 22 has resolved this issue.

Questions?

Contact: Opto 22 Product Support.
Phone: 800-835-6786 or 951-695-3080
Email: support@opto22.com


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