Configuring the S7-400 master station
(1) Right click in the right area and select “SIMATIC 400 STATION” in the pop-up shortcut menu Order, insert 400 sites, the corresponding S7-400 station will be displayed in the right window of the screen.
(2) Double-click the “Hardware” icon to configure the rack, PS and CPU modules and insert the CPU414-3DP
When selecting a module, select the same PROFIBUS network as the slave and set the station address parameters, in this example
The PROFIBUS address of the CPU 414-3DP is 2. After the configuration is completed, click the “OK” button to confirm the appearance.
PROFIBUS network
(3) Select “PROFIBUS DP” on the right side of the HW configuration configuration interface of S7-400.
Select “CPU315x” in “Configured Stations” and drag it to the PROFIBUS bus on the left.
(4) “DP slave” that appears
In the properties dialog, it appears
Two slave stations configured
(5) Select one of the CPUs and click the “Connect” button to connect it to the PROFIBUS
On the network, then connect a slave in the same way. To disconnect the site from the network, select “Dis
Connect”. After the connection is completed, set the corresponding master I/O interface area for the two S7-300 slaves.
For example, to set the I/O interface area of the CPU315-2DP with address 3, double-click on station 3, and pop up
Click the “Edit” button in the “Configuration” column of the “DP slave properties” dialog box, group
The main station is the communication interface area of CPU414-3DP
(6) Configure the communication address area of the master station separately, and the corresponding rules are the main station output to the slave station input, the master station loses
Into the slave output. Then configure the communication interface area of the No. 4 slave station corresponding to the master station in the same way.
Corresponding communication address after configuration is completed
PLC ONE 