KB89625
Published: April 16, 2021
Revision: 1.0

Multiple Symptoms When Transmitting CAN Messages Using GRV-CCANI-2


Applies To:

Firmware for:

  • GRV-EPIC-PR1

Versions Affected:

GRV-EPIC-PR1 firmware 1.3.0 to current
GRV-CCANI-2: All versions

Resolved In Version:

3.2.0


Symptoms:

The following symptoms can occur after transmitting 12-20 messages via a GRV-CCANI-2 port into a misconfigured CAN bus:

  • Controller locks up
  • All groov module status LEDs (except for on/off status-only modules) turn RED.
  • I/O values are no longer updated
  • Touchscreen may stop responding

Workaround:

This problem can be prevented by making sure the CAN bus is correctly configured before transmitting from GRV-EPIC-PR1 using GRV-CCANI-2 (correctly terminated, at least one other working CAN device configured with the same data rate).

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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