Communication Port
14
Beijer Electronics, MAEN945B
5
Communication Port
COM1, a 9-pin female connector, is used to connect the operator terminal to a
controller via RS232, RS422 or RS485. Only COM1 can be used for download.
Note:
Make sure that the connection is in accordance with the setting of the dip switches,
for example RS485 corresponds to SW9 = ON. See section
Pin
Function
1
RS422 TX+ (RS485+)
2
RS232 RXD
3
RS232 TXD
4
RS422 RX+
5
Signal ground
6
RS422 TX- (RS485-)
7
RS232 RTS
8
RS232 CTS
9
RS422 RX-
