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Shenzhen King Pigeon Hi-Tech Co.,LED
Ver 1.2
PLC Data acquisition protocol conversion gateway
-D225
Data acquisition of Siemens PLC
Take Siemens S7-200SMART as an example, communicate with D225 equipment through RS485,
server protocol selection: Modbus TCP Server, acquisition output Q and variable register VW.
5.2.1
S7-200 SMART And D225 device connection
Note: 1. The example in the figure is directly connected to the D225 device through the RS485 line.
Note that the data A and B of the PLC RS485 port should correspond to the A and B of the RS485
interface of the D225
2. The network cable of D225 in the example shown in the figure is connected to the router and in
the same local area network as the computer.
Connection instructions: (1) D225 equipment power cord (12V/1A), (2) D225 equipment network
cable connected to the router, (3) and (4) connected via RS485 line, Siemens PLC RS485 interface
connected to D225 equipment RS485 Interface, (5) Siemens PLC power cord
