Sinamics V20 stuck in local mode - Modbus RTU
I am having an issue with a Siemens Sinamics V20 VFD which I can not control with Modbus RTU. I believe this is because it is in local mode, but I am not using any digital inputs for the drive. Modbus register 40037 is true, stating it is in local mode. Does anyone know what is causing the local mode?
Posted Dec 7, 2025, 12:37 PM UTC
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