Luis Eduardo Ortiz Posted June 16, 2018 Report Share Posted June 16, 2018 Hi guys, i have a problem with an connection between a plc and ac driver with a modbus rs485 protocol. My question is, how i can determinate the start vector and the length vector. Could you help me with a guide? thanks. Link to comment Share on other sites More sharing options...
MVP 2023 Ausman Posted June 16, 2018 MVP 2023 Report Share Posted June 16, 2018 More information is needed. Your AC drive should have a list of all the registers within the unit that will then let you set up communications with the PLC. Post the registers or a link to the manual. cheers, Aus Link to comment Share on other sites More sharing options...
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