Pro-face RHAA089: COM1 Multilink communication information address differs from other stations

Pro-face HMI Critical Communication

Model: GP4000/SP5000 Series | Code: RHAA089

Applicable Systems
GP4000 Series

Symptoms

  • GP-Pro EX display unit shows error RHAA089: COM1 Multilink communication information address differs from other stations.

Possible Causes

  • The address of the Multilink communication information is different from the other station.

Troubleshooting Steps

  1. Step 1: Set the Multilink communication information address to the same address on the Multilink Network.
    Communication restored and error cleared

How to Reset

Repower or reset the display unit after correcting the root cause.

Related Pro-face Fault Codes

Source: Pro-face GP-Pro EX Maintenance/Troubleshooting Manual, T.7.1 Common Display errors (proface.tech/otasuke official)

Category: HMI