Continuum reports an Unknown Model Number error

[Product_Support]

Issue

Continuum reports an Unknown Model Number error.

Product Line

Andover Continuum

Environment

• Controller Model number
• Bootloader
• Learn

Cause

Possible reasons why Continuum may report an Unknown Model Number error.

1. Controller is in bootloader mode.
2. Controller is not responding fast enough due to a comm issue.
3. The controller type saved in the Continuum database is different from the controller type physically installed.
4. The total number of controllers exceeds the maximum number of nodes allowed on the Master.
5. The baud rate of the bLink is not correctly set for the MSTP bus.
6. The comm bus is not stable.
7. Problems introduced to the bus due to a bad controller or electrical interference.

Resolution

1. Communication issue must be troubleshot by using a combination of Controller error logs and LAN capture analysis.
2. A controller can be brought out of bootloader mode by flashing the firmware. 
3. Create the device manually.
4. Attempt to learn the controller onto the bus with no other controllers attached
5. Correct misaligned baud rate settings.
6. Run an ACCTrace at the Workstation during a learn to detect duplicate IDs.

Other articles that address this issue:

• Unknown model number error when learning I2/b3 device
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