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2.4 Profibus-DP Interface
Profibus-DP port is 9 Pin terminals and its Pin definition is as follows:
Pin
RS-485
1
2
3
B/B＇
4
5
C/C＇
6
7
8
A/A＇
9
2.5 Terminal definition
The equipment wiring adopts 7Pin 3.81mm pitch plug-in terminal., the terminal
definition of serial port as follows:
No.
Terminal
1
R-
2
R+
3
TB-
4
TA+
5
SGND
6
RX
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Definition
Shield
M24V
RXD/TXD-P
CNTR-P
DGND
VP(+)
P 24V
RXD/TXD-N
CNTR-N
RS422 Wiring
Definition
RS422 Receiving-
RS422 Receiving+
RS422 Sending-
RS422 Sending+
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Description
Earthing of Shield
Data line B
Direction control-P
Signal Grounded
+5v
Data line A
Direction control-N
RS485 Wiring
RS232 Wiring
Definition
RS485-
RS485+
Signal GND
RS232 Receiving
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Definition
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