Hardware Information
Release 04/02
7-11
Panel PC 670 Computing Unit, Equipment Manual
Serial interface COM1 (AG/V24/Modem)
The serial interface (COM 1) of the computing unit is assigned as follows:
1
13
14
25
Figure 7-1
Serial interface COM1 (female)
Pin No.
Short Name
Meaning
Input/Output
1
-
Shield
-
2
TxD (D1)
Serial transmission data
Output
3
RxD (D2)
Serial received data
Input
4
RTS (S2)
Request to send
Output
5
CTS (M2)
Clear to send
Input
6
DSR (M1)
Data set ready
Input
7
GND (E2)
Functional ground (reference
potential)
-
8
DCD (M5)
Data carrier detect (carrier)
Input
9
+TTY RxD
TTY receive
Input
10 - 17
-
Not assigned
-
18
+TTY TxD
TTY send
Output
19
+20mA
Isolated current source
-
20
DTR (S1)
Data terminal equipment ready
Output
21
-TTY TxD
TTY send
Output
22
RI (M3)
Incoming call
Input
23-25
-
Not assigned
-
Summary of Contents for SIMATIC PC 670
Page 4: ...For your notes ...
Page 12: ...Contents Release 04 02 xii Panel PC 670 Computing Unit Equipment Manual ...
Page 132: ...Fault Diagnosis Release 04 02 6 12 Panel PC 670 Computing Unit Equipment Manual ...
Page 176: ...Distributed configuration Release 04 02 8 6 Panel PC 670 Computing Unit Equipment Manual ...
Page 194: ...Glossary Release 04 02 Glossary 6 Panel PC 670 Computing Unit Equipment Manual ...
Page 200: ...Index Release 04 02 Index 6 Panel PC 670 Computing Unit Equipment Manual ...