text: <s>[INST] Powerflex 753 Modbus Hello, As far as I know, to read and write parameters in the Powerflex 753 VDF using Modbus, the boards 20-COMM-H (Modbus RTU) o 20-COMM-M (Modbus TCP) must be added to the device, is it right? If so, how can I read the following parameters through Modbus (specialley Modbus RTU)? Current speed (in rpm o hz) Input voltage (v) Output voltage (v) and frequency (hz) Intensity (A) I have read the datasheets of both boards but I was not able to determine the right Modbus registers to get that data. Best regards [/INST] Diamantino, Take a look at Chapter 7 (Datalinks) in the manual for the 20-COMM-H controller. It looks like this is what you need to set both on the drive and in the communication controller to be able to read any parameter you want. \\n </s>