KB90702
Published: October 6, 2023
Revision: 3.0

Clear All Latches command may cause processor/controller reset


Applies To:

Firmware for the following groov EPICs:

  • GRV-EPIC-PR1
  • GRV-EPIC-PR2
Firmware for the following SNAP PACs:
  • 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:

For groov EPICs: 3.5.0
For SNAP PACs: R9.2a to R10.4d

Resolved In Version:

For groov EPICs: 3.5.1
For SNAP PACs: R10.4e


Symptoms:

If your PAC Control strategy uses the Clear All Latches command on a SNAP I/O unit that has unconfigured points or empty module positions, the groov EPIC processor or SNAP PAC controller will reset.
 

Workaround:

Do one of the following:

  • Make sure all points on all modules are configured.
  • Clear latches on individual points with the Clear On-Latch or Clear Off-Latch commands.

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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