Pro-face RHAA088: COM1 Multilink station number duplicates another device

Pro-face HMI Critical Communication

Model: GP4000/SP5000 Series | Code: RHAA088

Applicable Systems
GP4000 Series

Symptoms

  • GP-Pro EX display unit shows error RHAA088: COM1 Multilink station number duplicates another device.

Possible Causes

  • The station number of the Multilink function duplicates that of another device.

Troubleshooting Steps

  1. Step 1: Verify the station number and re-set it so it does not duplicate.
    Communication restored and error cleared

How to Reset

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

Related Pro-face Fault Codes

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

Category: HMI