KB91292
Published: June 3, 2026
Revision: 2.0

SNAP PAC controllers and brains may not store Analog TPO period configuration to flash memory


Applies To:

Firmware for:

  • 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
  • SNAP-PAC-EB1
  • SNAP-PAC-EB1-FM
  • SNAP-PAC-EB1-W
  • SNAP-PAC-EB2
  • SNAP-PAC-EB2-FM
  • SNAP-PAC-EB2-W
  • SNAP-PAC-SB1
  • SNAP-PAC-SB2

Versions Affected:

All versions prior to R10.7a

Resolved In Version:

R10.7a


Symptoms:

If you have configured the TPO Period field on the Analog Point page in the Inspect Opto 22 Device window in PAC Manager, and you save the configuration to flash memory on a SNAP PAC controller, this TPO value may not persist and reverts to the default 0.0000 when you reset or restart the controller.

Workaround:

In PAC Control, use the Set Analog TPO Period command to configure the TPO period and then use the Move command to set the TPO percentage (Output Scaled field in PAC Manager).

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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