KB88811
Published: May 11, 2020
Revision: 2.0

SNAP-PAC-ROK system: Backup redundant controller may become unresponsive


Applies To:

Firmware for:

  • SNAP-PAC-S1
  • SNAP-PAC-S1-FM
  • SNAP-PAC-S1-W
  • SNAP-PAC-S2
  • SNAP-PAC-S2-W

Versions Affected:

All versions


Symptoms:

When using a SNAP PAC S-series controller in a redundant system with the SNAP PAC Redundancy Option Kit (part number SNAP-PAC-ROK), if an HMI system polls the backup controller for data from a numeric or string table at the same time the backup is trying to synchronize that table, the controller may become unresponsive, requiring the unit to be restarted.

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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