Communication Ports
Beijer Electronics, MA00824
15
5
Communication Ports
COM1, a 9-pin female connector, is used to connect the operator terminal to a
controller via RS232 or RS485.
COM2, a 25-pin female connector, is used to connect the operator terminal to
a controller via RS232, RS422 or RS485.
Note:
Make sure that the connection is in accordance with the setting of the dip switches,
for example RS485 corresponds to SW9 and SW10 = ON. See section
Pin
Function
Pin
Function
Pin
Function
1
RS485+
1
N/A
14
RS422 TX+
(RS485+)
2
RS232 RXD
2
RS232 TXD
15
RS422 TX-
(RS485-)
3
RS232 TXD
3
RS232 RXD
16
RS422 RX+
4
N/A
4
RS232 RTS
17
RS422 RX-
5
Signal ground
5
RS232 CTS
18
N/A
6
RS485-
6
N/A
19
7
RS232 RTS
7
Signal ground
20
8
RS232 CTS
8
Optional;
+5V@100mA output
21
9
Optional;
+5V@100mA output
9
N/A
22
10
23
RS422 RTS+
11
24
RS422 RTS-
12
RS422 CTS+
25
N/A
13
RS422 CTS-
COM 2
1
10
11
13 12
6
7
9 8
5
2
3
4
14
17
22
25 24 23
20
21
19 18
15
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