Automation Direct D2-DCM, Руководство пользователя

Страница: 42 / 83

A–6
Cable Diagrams
Data Communications Module, 2nd Edition, 2/03
These diagrams show the D2–DCM being used as a slave to a personal computer. Since
most personal computers come with RS232C communication cards, we have shown an
FA–UNICON RS232/422 Converter being used to convert the signal. The personal computer
would have to be capable of issuing commands using either
Direct NET or MODBUS RTU
protocol.
DL205 DCM
Master
2 TXD
3
7
4
RXD
GND
RTS
5 CTS
25Ćpin DTE
Connector
6 DSR
8 DCD
20 DTR
2 RXD
3
5
1
6
TXD
GND
DCD
DSR
RS232C
Personal Computer
4 DTR
7 RTS
8 CTS
9Ćpin DTE
Connector
FA–UNICON Converter
25Ćpin Connector
7 GND
10
11
12
17
+RTS
–RTS
+CTS
+IN
13 –CTS
16 –IN
15 –OUT
14 +OUT
2 TXD
3
7
20
RXD
GND
DTR
7 GND
10
11
12
14
+RTS
–RTS
+CTS
+IN
13 –CTS
15 – IN
16 –OUT
17 +OUT
25Ćpin Connector
7 GND
10
11
12
17
+RTS
–RTS
+CTS
+IN
13 –CTS
16 –IN
15 –OUT
14 +OUT
2 TXD
3
7
20
RXD
GND
DTR
7 GND
10
11
12
14
+RTS
–RTS
+CTS
+IN
13 –CTS
15 – IN
16 –OUT
17 +OUT
RS422
FA–UNICON RS232/422 Converter
Slave
RS232C
Personal Computer FA–UNICON Converter
RS422
DCE
DCE
Note: 1. You must connect pin 20 to pin 25
2. RTS/CTS are looped back internally
and do not require external wiring.
D2–DCM
D2–DCM
DTE
DTE
25 +5V
Note: 1. You must connect pin 20 to pin 25
2. RTS/CTS are looped back internally
and do not require external wiring.
25 +5V
Point-to-Point
RS422
PC as Master