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REMOTE CONTROL INTERFACE
RS232/485 INTERFACE
The DLA200 dual block control system unit may be monitored and controlled remotely either via a RS232
or a RS485 multi-drop bus. The connection is made via the 15 way D type on the rear of the unit and
configured as described earlier.
INTERNAL CONFIGURATION (RS232/485)
RS485 - 232 address/baud rate configuration switches
No
1
2
3
4
5
6
7
8
Baud rate selection with switches 5- 8 (0=off)
Any Configuration of switches not shown here means the baud rate defaults to 9600.
RS485 unit address with switches 1 - 4 (0=off)
Note addresses have been started at 32 to avoid any possible conflict in reading data
4
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
An internal connection change is required for changing from RS232 to RS485. Please ensure that the
unit is switched off and the 12 cover screws are removed.
The jumper LK1 on the PCB needs to be set to the correct position in order to change between RS232
and RS485 operation. RS485 is towards the front of the unit, while RS232 is when the jumper is placed
towards the rear of the unit.
Issue 1.15
Colour
Brown
Red
Orange
Yellow
Green
Blue
Violet
Grey
5
6
7
0
0
1
0
1
0
1
0
0
3
2
1
Address
0
0
0
0
0
0
1
0
0
1
0
0
0
1
0
0
1
0
1
1
0
1
1
0
0
0
1
0
0
1
1
0
1
1
0
1
0
1
1
0
1
1
1
1
1
1
1
1
DLA200 Dual Line Amplifier Unit
Function
RS485 address select
RS485 address select
RS485 address select
RS485 address select
Baud Rate select
Baud Rate select
Baud Rate select
Factory Setting
Baud rate
2400
9600
19200
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
Page 8
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