Crojas_xa Posted March 15, 2021 Report Share Posted March 15, 2021 Saludos Cordiales. Estoy empezando en el uso de los PLC de la marca unitronics en la versión V1040 y necesito que los registro de lectura y escritura entre el variador y PLC, sea simultaneo, la comunicación la estoy realizando por medio de MODBUS RS-485, tengo el problema que el PLC esta enviando siempre a escribir registro de frecuencia al variador, ya que el PLC recibe señal de un sensor, haciendo retroalimentación con el variador, y por alguna razón esto interfiere con los otros registros, por lo que no puedo leer mas registros como voltaje, amperaje de salida del variador. espero haberme explicado lo mejor posible, y tener una pronta respuesta de su parte. saludos desde Ecuador. Quote Link to comment Share on other sites More sharing options...
AlexUT Posted March 16, 2021 Report Share Posted March 16, 2021 Estimated Google translation: ----------------------------------------- Best regards. I am starting to use unitronics brand PLCs in version V1040 and I need the reading and writing registers between the drive and the PLC to be simultaneous, the communication is being done through MODBUS RS-485, I have the problem that the PLC is always sending the frequency register to write to the inverter, since the PLC receives a signal from a sensor, making feedback with the inverter, and for some reason this interferes with the other registers, so I cannot read more registers like drive output voltage, amperage. I hope I have explained myself as well as possible, and have a prompt response from you. greetings from Ecuador. Quote Link to comment Share on other sites More sharing options...
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