MODBUS/UDP Packet Format
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MODBUS/UDP Packet Format
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The MODBUS/UDP packets are "encapsulated" inside a standard UDP (User Datagram Protocol) packet
The UDP payload is divided in three major fields which are
| • | MBAP (MODBUS Application Protocol) |
| • | FC (Function Code) |
| • | MDP (MODBUS Data Payload) |
The MBAP and the FC code, together, represent the HEADER while the MDP field contains the data related to the request/response being issued
