5.12
COM1
Interface assignment
Designation: COM1, X30
Type: 9-pin (connector)
Serial interface COM1
Pin no.
Short designation
Meaning
Input/output
1
DCD
Data carrier detect
Input
2
RxD
Receive data
Input
3
TxD
Transmit data
Output
4
DTR
Data terminal ready
Output
5
GND
Ground
-
6
DSR
Data set ready
Input
7
RTS
Request to send
Output
8
CTS
Clear to send
Input
9
RI
Incoming call
Input
Interfaces
5.12 COM1
SIMOTION P320-4 E / P320-4 S
Manual, 03/2018, A5E36004933B
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