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3ADR010470, 2, en_US
7.2
Serial port
The serial port is used to communicate with the PLC or with another type of controller.
Different electrical standards are available for the signals in the PLC port connector:
RS-232, RS-422, and RS-485.
The serial port is software programmable. Make sure you select the appropriate interface
in the programming software.
Pin
RS-232
RS-422, RS-485
1
GND
GND
2
3
TX
CHA-
4
RX
CHB-
5
6
+5V output
+5V output
7
CTS
CHB+
8
RTS
CHA+
9
To operate in RS-485 pins 7-8 and 3-4 must be connected externally.
The communication cable must be chosen for the type of device being connected.
7.3
Ethernet port
The Ethernet port has two status indicators. Please see description in figure.
Yellow
OFF: Valid link has NOT been detected
ON: Valid link has been detected
Green
ON: No activity
BLINKING: Activity