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Pin
Name
1
TX+
2
TX-
3
RX+
4
5
6
RX-
7
8
Table 5 PROFIBUS DB9 Female Connector
Pin
1
2
3
4
5
6
7
8
9
2.3 Wiring
GW-7553-B / GW-7553-M supports PROFIBUS to Serial or Ethernet
communication. It is recommended to use only one communication interface (RS-
232 or Ethernet) of the Gateway at the same time. The following section describes
the connection interface of GW-7553-B / GW-7553-M.
2.3.1 RS-232 connection
GW-7553-B / GW-7553-M PROFIBUS/Modbus TCP Gateway User Manual (Version 1.35, May/2017)
PAGE: 9
TX+ output
TX- output
RX+ input
-
N/A
-
N/A
RX- input
-
N/A
-
N/A
Name
-
N/A
-
N/A
B
Non-inverting Bus Line
ISODE
Isolated DE output for use in PROFIBUS
applications where the state of the isolated drive
enable node needs to be monitored.
GND
Power supply ground for the first node and the last
node
VP
+5V Power Supply for the first node and the last
node
-
N/A
A
Inverting Bus Line
-
N/A
Description
Description
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