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Hardware description
3.2 SIMOTION P350-3 PC unit
Serial interface COM1
The COM1 serial port has the following pin assignment:
Serial interface COM1
Pin No.
1
2
3
4
5
6
7
8
9
44
Short designation
Meaning
DCD (M5)
Receiving signal (level carrier)
RxD (D2)
Receive data
TxD (D1)
Transmit data
DTR (S1)
Terminal ready
GND (E2)
Functional ground (reference potential) –
DSR (M1)
Readiness for operation
RTS (S2)
Request To Send
CTS (M2)
Clear To Send
RI (M3)
Incoming call
Input/output
Input
Input
Output
Output
Input
Output
Input
Input
SIMOTION P350-3 and Panels
Manual, 05/2009
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