P74x/EN SC/N
1, P742, P743 (SC) 13-
FIGURE 2: REMOTE COMMUNICATION CONNECTION ARRANGEMENTS
Having made the physical connection to the relay, the relay’s communication settings must
be configured. To do this use the keypad and LCD user interface. In the relay menu firstly
check that the ‘Comms. settings’ cell in the ‘Configuration’ column is set to ‘Visible’, then
move to the ‘Communications’ column. Only two settings apply to the rear port using
Courier, the relay’s address and the inactivity timer. Synchronous communication is used at
a fixed baud rate of 64kbits/s.
Move down the ‘Communications’ column from the column heading to the first cell down
which indicates the communication protocol:
Protocol
Courier
The next cell down the column controls the address of the relay:
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