RS485 communication protocol: C320 series inverter provides standard RS485 communication interface. Users can realize centralized monitoring (send operation command setting, inverter working parameters and read inverter working status) through PC/PLC to meet specific use requirements. The protocol content of this appendix is designed to realize the above functions. Protocol content This serial communication protocol defines the information content and usage format transmitted in the serial communication protocol. It includes: host polling (or broadcast) format; host encoding method, including: function code of required action, transmission data and error check, etc. The response of the slave also adopts the same structure, including: action confirmation, return data and error check, etc. If the slave has an error when receiving information, or cannot complete the action required by the host, it will organize a fault information as a response to the host.
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