groov EPIC processor may become unresponsive when writing to the memory map

Applies To:

Firmware for the following groov EPICs:

GRV-EPIC-PR1
GRV-EPIC-PR2

Versions Affected:

All versions prior to 3.2.2

Resolved In Version:

3.2.2

Symptoms:

On rare occasions, when you write to the memory map configuration area for the following list of groov I/O modules, the groov EPIC processor may lock up or reset:

GRV-IAC-24
GRV-IACI-12
GRV-IACDCTTL-24
GRV-IACHV-24
GRV-IACIHV-12
GRV-IDC-24
GRV-IDCI-12
GRV-IDCIFQ-12
GRV-IDCSW-12

GRV-IICTD-12
GRV-IMA-24
GRV-IMAI-8
GRV-ITM-12
GRV-ITMI-8
GRV-ITR-12
GRV-IV-24
GRV-IVI-12
GRV-IVIRMS-24

GRV-OAC-12
GRV-OACI-12
GRV-ODCI-12
GRV-ODCSRC-24
GRV-OVMAILP-8
GRV-OVMALC-8
GRV-CCANI-2
GRV-CSERI-4

Symptoms of a lock up include:

Module status LED on all modules turns red
Touch screen becomes unresponsive
No Ethernet communication
The groov EPIC processor resets

Workaround:

Configure the listed modules only once.
Minimize writes to the memory map configuration area for the modules listed above. Do not repetitively write to these areas.
For a list of the affected memory map addresses, see the "(Expanded) Analog & Digital Channel Configuration—Read/Write" section of the OptoMMP Protocol Guide. The starting address of this section of the memory map is 0xF0100000.

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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