Digital TPOs start operating upon I/O unit boot-up or after restart

Applies To:

Firmware for the following EPICs:

GRV-EPIC-PR1
GRV-EPIC-PR2

Firmware for the following RIOs:

GRV-R7-MM1001-10
GRV-R7-MM2001-10

Firmware for the following SNAP PACs:

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
G4EB2
SNAP-PAC-SB1, SNAP-PAC-SB2

Versions Affected:

For groov EPICs: 3.2.1 to 4.0.2
For groov RIOs: 3.2.0 to 4.0.2
For SNAP PACs: R8.2a to current

Resolved In Version:

For groov EPICs: 4.0.3
For groov RIOs: 4.0.3
Not yet resolved for SNAP PACs

Symptoms:

After an I/O unit boots up or restarts, any I/O configurations stored in persistent memory are restored. If a TPO is restored, the TPO should not start controlling the digital output, but with this issue, it may.

Workaround:

Disable TPOs (by turning off the digital output or setting the TPO Percent to 0) before storing I/O configuration to persistent memory.

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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