capitan_cook Posted October 24, 2013 Report Share Posted October 24, 2013 Hello,I want to write two coils with the coils Force Command 603Unfortunately, I can not.I'm probably not the right structure.I would like to describe ID 2, coil number 0001h and 0002h with MB1 and MB2.I have selected the following structure can you tell me what is wrong? Greeting CookPlease forgive my poor English. Quote Link to comment Share on other sites More sharing options...
Alexander Posted October 24, 2013 Report Share Posted October 24, 2013 The logic that you displayed appears correct. Have you also configured the M91 controller for use as as MODBUS master? The U90 help file under Communications/ MODBUS describes how to configure the controllers Network ID, timerout, retries, time delay, and baud rate. If this is not set up properly or the baud rate is not matched to the device you are communicating with this could cause an issue. Quote Link to comment Share on other sites More sharing options...
capitan_cook Posted October 25, 2013 Author Report Share Posted October 25, 2013 Hello,Thank you for your quick response.I have found my mistake. Modbus I have set correctly.I am trying to control with the Mobus an inverter. This accepts the command only when a number of bytes currently being used as bytes consist of a MSB and LSB. So I SI143 set to 10. Now the inverter is running.Greeting Cook Quote Link to comment Share on other sites More sharing options...
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