No write access to the parameter (Register 0007)

What does 01 mean?

An attempt was made to write to a parameter through Holding Register 0007 that is either inherently read-only or currently write-protected. This indicates a parameter that can only be viewed, or one that requires a specific operating state or access level for modification.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Check if a password or specific access level (e.g., Installer, Expert) is required to write to the parameter via Modbus.

2. 4

   Review parameter settings that might globally or specifically restrict write access to parameter groups.