Lika LD30 Series, Руководство пользователя

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LD30x
4.6 Serial RS-232 / RS-485 interface (LD303 model only)
Ex factory the unit is set to RS-232 communication. This setting can be changed
to RS-485 (2-wire) by means of an internal DIL switch. To access the DIL switch,
please remove the screw terminal connectors and the back panel. Then pull the
board to the rear to remove the PCB from its housing.
ON DIP
DIL-Switch
Removal of the back panel Location of the DIL switch
RS-232
ON
8
9
10
RxD
TxD
GND
RS-485
ON
8
9
10
A (+)
B (-)
GND
WARNING
1. Never set DIL switch positions 1 and 2 or DIL switch positions 3 and 4 to
ON at the same time!
2. After setting the switch, shift the print carefully back to its housing, in
order to avoid damaging the front pins for connection with the front
plate.
MAN LD30x E 1.0.odt Electrical connections 7 of 40