KB88148
Published: November 7, 2019
Revision: 1.0

PAC Control Calculate Strategy CRC command may return wrong value


Applies To:

Firmware for:

  • SNAP-PAC-S1, SNAP-PAC-S1-FM, SNAP-PAC-S1-W
  • SNAP-PAC-S2, SNAP-PAC-S2-W
  • SNAP-PAC-R1, SNAP-PAC-R1-FM, SNAP-PAC-R1-W, SNAP-PAC-R1-B
  • SNAP-PAC-R2, SNAP-PAC-R2-FM, SNAP-PAC-R2-W
  • SoftPAC

Versions Affected:

All versions


Symptoms:

In a PAC Control strategy, if the Calculate Strategy CRC command is used in Block 0 of the Powerup chart and then again after a subroutine has been called, the two values may differ.

Workaround:

If your PAC Control strategy contains logic that passes a numeric value to a subroutine as a literal, change those instances to pass the numeric value as a variable.

Resolution:

Opto 22 has resolved this issue and will include the fix in an upcoming release.

Questions?

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


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