Modbus-TCP

The Modbus-TCP protocol is 100% Ethernet-compatible and is used for data exchange between I/O controllers and I/O devices (slaves / field devices). It adapts the widely used Modbus protocol to TCP/IP with Ethernet as the common medium. Modbus-TCP is a master / slave (or client / server) system in which Bronkhorst® instruments can only be implemented as slave devices.

Characteristics

• +15 or +24 Vdc power supply
• Physical media: standard Ethernet cabling
• Network topology: tree, star, ring and daisy-chain
• Baud rates from 10 Mbps, 100 Mbps and 1 Gbps
• Communication method: Master/Slave
• Max. nodes: unlimited

Modbus-TCP system example