Device Description XVC-100
Text Display PLC
XVC-100
Commissioning
Subject to technical modifications
Doc No. 92 23 100000 (06/2002)
© by Moeller GmbH
19
5.5 C
ONNECTING THE PROGRAMMING INTERFACE
– X7
The programming is carried out via the standard RS232 interface (COM1).
The connection to the programming PC is made using a null modem cable.
The cables are also available as an accessory (
"
Section 3.2).
This interface is
not
isolated. The GND connection is implemented directly
on the housing potential (
"
Section 11).
Cables connected to the programming interface must be laid separately
from the low-voltage cables.
Connector assignment
Connector X 7 - RS232 programming interface
Sub-D 9 Pole male
Pin No.
Assignment Function
1
DCD
Data Carry Detect
2 RXD
Receive
data
3 TXD
Transmit
Data
4
DTR
Data Terminal Ready
5 GND
Ground
6
DSR
Ready for Operation
7 RTS
Send
Request
8 CTS
Send
Enable
9 RI
Ring
Indicator
Case Case
Cable
shield
A detailed description of the project download is
provided in the “XSoft” system description or in the
appropriate software documentation.
Wiring of the null modem cable
female female
9pole 25pole
25pole 9pole
DCD 1 8
20 4
DTR
RXD 2 3
2 3
TD
TXD 3 2
3 2
RD
DTR 4 20
8/6 1/6
DCD/DSR
GND 5 7
7 5 GND
DSR 6 6
20 4 DTR
RTS 7 4
5 8 CTS
CTS 8 5
4 7 RTS
RI
9
9
1
2
3
4
5
6
7
8
9
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