Specific application of Modbus485 to profinet gateway to connect servo spindle drive and PLC

The PN controller communicates with the INVT server through the Kaijiang intelligent Modbus485 to profinet gateway. This communication method greatly simplifies the control process in the industrial automation system. This case is a configuration case of connecting the INVT DriveServo200 series servo spindle driver and PLC using the Modbus485 to profinet gateway. The devices used are Siemens S7-1200PLC, Kaijiang intelligent Modbus485 to profinet gateway, and INVT DriveServo200 series servo spindle driver.

Configuration example: Open Botu and install the gsd file.

Select the location of gsd and it will appear in the picture after confirmation. Just choose to install it.

After installation, find the Modbus485 to Profinet gateway module at the following address.

Modbus485 to profinet slave connected to 1200PLC PN bus interface

Set the IP address and device name of the Modbus485 to Profinet gateway. To be consistent with the configuration software, the IP address must be in the same network segment as the PLC.

Add read and write controller data length to the Modbus485 to profinet gateway and download the configuration to the PLC.

First install the Modbus485 to profinet gateway configuration software, open the software to create a new project and select PN2MRM3;

Set the IP address and device name of the PN end, which must be consistent with the Botu configuration.

The following figure is a description of the communication application format of the slave station;

As can be seen from the figure above, the address is 1, the function code is 03, and the number of registers read is 2, then you can start configuring the Modbus485 to Profinet gateway. The example starting address in the manual is 0004H, which needs to be converted to a decimal address of 4. Read the data of 2 addresses continuously and fill in the figure below.

At this time, according to the address description in the product manual, you can put the value of the Modbus485 to Profinet gateway into the IW or QW area of ​​the 1200PLC, so as to further calculate and collect the data. The above is the quick configuration of the Modbus485 to Profinet network in the Siemens 1200PLC Portal.