Hardware Information
Release 11/02
7-9
SIMATIC Panel PC 870 Computing Unit, Equipment Manual
Serial port COM2 (V24/mouse), X31
The serial port on the computer unit is assigned as follows:
Connector
Pin
No.
Short
Name
Meaning
Input /
Output
1
DCD (M5)
Data Carrier Detect
(carrier)
Input
2
RxD (D2)
Received data
Input
3
TxD (D1)
Transmission data
5 9
4
DTR (S1)
Data Terminal Equipment
Ready
Output
5
GND (E2)
Station ground (reference
potential)
–
6
6
DSR (M1)
Data Set Ready
Input
1
7
RTS (S2)
Request To Send
Output
8
CTS (M2)
Clear To Send
9
RI (M3)
Incoming call
Input
Summary of Contents for Simatic PC Panel PC 870
Page 4: ...Chapter For your notes ...
Page 12: ...Contents Release 11 02 xii SIMATIC Panel PC 870 Computing Unit Equipment Manual ...
Page 94: ...Fault Diagnosis Release 11 02 6 10 SIMATIC Panel PC 870 Computing Unit Equipment Manual ...
Page 130: ...Hardware Information Release 11 02 7 36 SIMATIC Panel PC 870 Computing Unit Equipment Manual ...
Page 154: ...Index Release 11 02 Index 4 SIMATIC Panel PC 870 Computing Unit Equipment Manual ...