TTK FG-SYS - Page 31

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(M) 2.3 RS232, RS422, RS485 JBUS/MODBUS COMMUNICATION
 2   3   1 
 1  (M) 2.3.1.1
The FG-SYS digital unit is equipped with two independent serial interfaces.
Each interface can be used, either:
 With RS232, three-wire connection:
 Rx
 Tx
 GND
 or RS422, four-wire connection:
 Rx-
 Rx+
 Tx-
 Tx+
 or RS485, two-wire connection:
 RT-
 RT+
Serial interface No. 1 may be used to communicate with a supervisor (TOPSurveillance, GTC,
MODSCAN32, etc.)
Serial interface No. 2 can be used to drive the system of external relays or to communicate with a
supervisor.
To activate the JBUS/MODBUS function, go to MENU (M)  OPERATION  SERIAL
COMMUNICATION  JBUS  ON, adjust the slave No. and then confirm with the V button.
SLAVE NUMBERS:
(01 - 99)
1
JBUS: ON
1- ON
0- OFF
SERIAL
COMMUNICATION
-JBUS
OPERATION
1-BUZZER ON/OFF
2- DRY CONTACTS
3-COMMUNICATION