User Manual

(2) When the back-up master breaks down — Master declaration at the

master

1) A satellite detects a breakdown of the back-up master through the system retry function

when it is sending updated GLU/PBLU data to both the master and back-up master. At

this point, the message “NO REPLY/BACKUP” appears in the pop-up window of the

display.

NO REPLY/BACKUP

2) The master declaration operation must be performed at the master. This operation

causes the master to inform all satellites that the back-up master is not available.

3) Each satellite in the IRC system sends updated GLU/PBLU data only to the master.

4) The master processes the received data and sends back the processed data to each

satellite.

Flow of a master declaration at the master

1) Detection of a master breakdown

3) Updated data

Satellite

(Processing)

4) Processed data

(Transmission stops.)

Back-up master

Master

2) Master declaration

The master declaration procedure is the same as “(1) When the master breaks down.”