IFM Modbus Communication Interface

IFM Modbus Communication Interface

An IFM Modbus communication interface is required for connection of a MasterPacT or PowerPacT circuit breaker to a Modbus network as long as this circuit breaker is provided with a ULP (Universal Logic Plug) port. The port is available on the BCM ULP.

Once connected, the circuit breaker is considered as a slave by the Modbus master. Its electrical values, alarm status, open/close signals can be monitored or controlled by a Programmable Logic Controller or any other system.

ULP Port

Two RJ45 sockets, internal parallel wiring.

• Connection of a single circuit breaker.

• A ULP line terminator or an FDM121 display unit must be connected to the second RJ45 ULP socket.

• The RJ45 sockets deliver a 24 Vdc supply fed from the Modbus socket.

• Built-in test function, for checking the correct connection to the circuit breaker and FDM121 display

Modbus Slave Port

• Top socket for screw-clamp connector, providing terminals for:

  • 24 Vdc input supply (0 V, +24 V)

  • Modbus line (D1, D2, Gnd) 2-wire Modbus system

• Lateral socket, for DIN-rail stackable connector. Both top and lateral sockets are internally parallel

  wired.

• Multiple IFMs can be stacked, thus sharing a common power supply and Modbus line without individual wiring.

• On the front face:

  • Modbus address setting (1 to 99): two coded rotary switches

  • Modbus locking pad: enables or disable the circuit breaker remote control and modification of IFM parameters

• Self-adjusting communication format (Baud rate, parity

A. Modbus Screw Clamp Connector B. Modbus Address Switches C. Modbus Traffic LED D. Modbus Locking Pad E. ULP Activity LED F. Test Button G. Mechanical Lock H. ULP RJ45 Connectors I. Stacking Accessory Connection

Stacking an IFM

Stacking Accessories	Up to 12 Stacked IFM

Stacking an IFE Interface + Gateway with IFMs