roghenr Posted January 20 Report Share Posted January 20 Good Morning. I need help, I'm using plvc vision 130 and I want to read modbus data from a yaskawa inverter, which I haven't been successful with. I was successful in: inverter on/off #yaskawa address 0001H enter frequency #yaskawa address 0002H Unsuccessful in: read frequency #yaskawa address 0024H read inverter status #yaskawa address 0020H I would like to see in the ihm the value of the bits to use in the application Quote Link to comment Share on other sites More sharing options...
MVP 2021 kratmel Posted January 20 MVP 2021 Report Share Posted January 20 Hi, in your read command used only 1bit vector length. Yaskawa operate with 16bit vector that must be transmitted to MI Vector. Quote Link to comment Share on other sites More sharing options...
MVP 2021 Joe Tauser Posted January 20 MVP 2021 Report Share Posted January 20 You've also got your RHR status (MI 52) at one address after your destination (MI 51) so you're going to stomp on yourself when you read a vector larger than one. Set your status address much higher, like at MI 100. Joe T. Quote Link to comment Share on other sites More sharing options...
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