How to connect Kunlun on state │ G series screen with Siemens 300 domestic MPI adapter

01 Hard wire connection

The adapter is the output interface 232 End adapter , Both ends of the communication line are female , Cross wire connection is adopted , After wiring according to the above figure, directly connect MPI The adapter is terminated onto the adapter （ Do not connect to the outgoing line of the adapter , Otherwise, we can't communicate ）

02 Siemens PLC End settings

1). Hardware connection

Siemens is used in this test s7-300 315-2DP CPU To test , The software is step7 V5.5 edition , Use a computer with serial port or USB To serial port , Before configuration, connect the adapter cable to plc On ,232 Terminate the cable provided with the adapter （ Female heads at both ends ）, One end is connected to the adapter , One end is connected to the computer serial port . Set the baud rate of computer serial port 19200

2). Communication parameter setting method ：

Connect PLC, function Step7 Programming software .

Select... From the main menu Options, choice “Set PG/PC Interface”, eject “Set PG/PC Interface” window , As shown in the figure below

Be careful ： without PC Adapter（MPI） Add in the interface selection shown in the figure below , Can be installed

Click the attribute button in the figure above , The communication interface parameter configuration box pops up, as shown in the figure below , Network parameters can be set , The corresponding parameters are displayed at the bottom left , The network transmission rate and maximum station address set by the driver in the configuration shall correspond to them one by one .

Click in the figure above “ Local connection ” page , Or switch to local communication settings , As shown in the figure below . Set the serial port communication parameters of this machine to 19200,  During configuration, the serial port number and baud rate parameters set by the parent of the general serial port should also correspond to it .

double-click CPU Set parameters , On the left is the slot number , The configuration sub equipment parameters should correspond to them

eject CPU Property page , As shown in the figure below , The address item is its PLC Station address

Click the attribute button in the figure above , eject MPI Interface Parameter configuration page , As shown in the figure below , But for PLC Of MPI Address of communication station 、 Network transmission rate 、 Set and modify the address of the highest station , Rate selection 187.5kps

After configuration, connect to PLC Use in M Write a program in the area

Download to PLC in

03 To configure Mcgsgro Software

• Add serial port parent device , A serial port choice COM1, Baud rate 19200

• Add Siemens 300/400MPI drive , The parameter defaults to

• After adding variables . Connect the corresponding variables , The communication status is numeric , Others are switching values

  

  

  The setup screen , As shown in the figure below

  

  Button Association M10.

  

  Indicators use visibility correlation M10.

  

• The communication status is associated with the communication status, and the numerical value of the communication status can be connected

• Finally, connect one end of the communication line directly to the adapter , One end is connected to the touch screen , After success, the adapter active Light flashing , The communication status is determined by 1 become 0, After the button is pressed and connected, the indicator light is on and the communication is successful .

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