A ModbusTCPSlaveNetwork automatically binds to the TCP/IP setup of the host JACE platform’s Ethernet adapter, assuming the IP address of the station. The JACE functions as a Modbus slave (server). If needed, it can appear as multiple Modbus slaves, by adding multiple ModbusTcpSlaveDevices under the ModbusSlaveNetwork, and assigning each one a unique Modbus address (1—247). However, all slaves are reachable only via the IP address of the host JACE platform.

The station acts as a Modbus slave (server) to queries received from a Modbus TCP master device. Each uniquely-addressed child device is represented by a ModbusTcpSlaveDevice, in which you specify ranges for available Modbus data items (coils, inputs, input registers, holding registers). In some cases, only a single child ModbusTcpSlaveDevice may exist to represent the station.