How to communication Delta DOP-100 and S7-300 PLC? This post guides you: “Communication in between Delta Dop-100 Series HMI and Siemens S7-300 (CPU315) PLC”. The content of the post writes by Mr Adil Ishtiaq from Pakistan. Thank you very much for your great sharing.
Select the connection method DOP-100 and S7-300 PLC.
- I was using Delta DOP-100 series HMI (DOP 110WS). In its instruction sheet there is connection description for RS485 connection.
I used COM3 in Mode2 (RS485) for both COM2 and COM3. Since there is only one physical port fulfilling the purpose of COM2 and COM3 on Delta DOP 110WS HMI.
- By considering the Siemens S7-300 PLC instruction sheet I found the terminal/pins for receive/send data pins for MPI port.
Connections pins which I used for communication are highlighted
Could be helpful for you:
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- S7-200 and WinCC Flexible. How to Make a Communication? Tutorial 1
- Step 7 MicroWIN on Windows 10 (V4.0 SP9). How to Install
Select the connection parameters on software
On Delta DOP-100 HMI Software
- Software version: DOPSoft Version: 4.00.06, Build : 4.00.06.19
- As described earlier I used COM3 and configured a link for SIMENS S7 300-400 (Direct MPI). I used RS485 communication interface and rest of the setting as shown in the figure above
On S7-300 PLC Software
- Software version: Simatic Manager Step 7 version V5.6 (Old versions can also be used).
- Step 1: Create project and select S7-300 Series CPU. I used CPU 315: 6ES7315-1AF03-0AB0.
- Step 2: Go through the hardware configuration -> CPU object properties -> Interface properties (interface by default set to MPI)
- Step 3: Set the address of “2” (as set in PLC station value in HMI communication settings)
- Step 4: Go to the further properties of subnet (MPI1) -> Network Setting
- Step 5: Adjust the transmission rate same as of baud rate set in HMI communication settings i-e: 187500 bps.
Good luck!
-By: Mr. Adil Ishtiaq from Pakistan-
