Wired Communication Tests

@TW: This topic is present in DOCA0284 and DOCA0285 (Commissioning). Any changes made will be made in all these guides.

Wired communication tests are required for MasterPacT MTZ circuit breakers with MicroLogic Active control unit and BCIM module.

Communication Network Test

Use the Modbus end-user client to test the communication network between the communicating devices of the project:

Circuit breakers connected to the Ethernet network through an IFE or EIFE Ethernet interface.
Circuit breakers connected to a Modbus serial line network from an IFM interface.
Circuit breakers connected to a Modbus serial line network through an IFM interface stacked to an IFE Ethernet server.

Step	Action
1	With the circuit breaker in the closed position, read the Modbus Circuit Breaker Status register to check that the circuit breaker status indicates closed.
2	Press the opening pushbutton on the front of the circuit breaker.
3	Read the Modbus Circuit Breaker Status register to check that the circuit breaker status indicates open.

Refer to DOCA0384•• MasterPacT, ComPacT, PowerPacT Circuit Breakers - Modbus Communication - User Guide in Related Documents at the beginning of this guide.

Remote Control Tests

If the MasterPacT MTZ circuit breaker with MicroLogic Active control unit can be opened and closed remotely through the wired communication network, use the following test to check for the correct operation of remote control:

Step	Action
1	With the circuit breaker in the closed position, read the Modbus Circuit Breaker Status register to check that the circuit breaker status indicates closed.
2	Send a Modbus remote control command to open the circuit breaker.
3	Read the Modbus Circuit Breaker Status register to check that the circuit breaker status indicates open.

Refer to DOCA0384•• MasterPacT, ComPacT, PowerPacT Circuit Breakers - Modbus Communication - User Guide in Related Documents at the beginning of this guide.