3 wiring……………………………………………………………………………………. 9, 3 wiring – B&B Electronics GW-7553 - Manual User Manual

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GW-7553 PROFIBUS/Modbus TCP Gateway User Manual (Version 1.00, Dec/2008) PAGE: 9

Pin Name

Description

7 -

N/A

Inverting Bus Line

9 -

N/A

2.3 Wiring

GW-7553 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.

2.3.1 RS-232 connection

The RS-232 port of the GW-7553 has got three pins. The wiring of the RS-232
device with the RS-232 port of the GW-7553 is shown in figure 4.

GW-7553

RS-232 port

RS-232 device

Figure 4 RS-232 wiring diagram

2.3.2 Ethernet connection

The user can connect GW-7553 with the other device to the same sub network
or same Ethernet Switch, as shown in figure 5.