How to Work With Simulator in S7-1200 and S7-1500 PLC?

Learn how to work with the simulator in S7-1200 and S7-1500 CPU models of Siemens PLC programming environment for simulation.

Simulator in S7-1200 and S7-1500 PLC?

Follow the below steps to test the logic in higher-end PLC CPU models of Siemens.

Note that you must choose version 4.0 and above to work with this CPU.

Step 1:

Open TIA Portal. Create a new project. Select the CPU as shown in the below window.

Choose CPU which has version 4.0 or above. Click “Add” to proceed.

Siemens higher-end PLC CPU

Step 2:

Do add the signal module. Enter into the programming environment.

Consider the following example we want to test.

Testing Logic in Simulator

Step 3:

Click on the simulator icon as shown in the below window.

simulator icon

Step 4:

The following window will open which will compile the program. Click “load” to proceed.

PLC Ready for Loading

Step 5:

Then following simulator window will open up.

Siemens S7 1200 CPU

Step 6:

Click on the icon as shown in the below image.

Siemens PLC SIM

Step 7:

A new window will open. Here, we have to create a project so it can host a simulator.

Host a PLC Simulator

Step 8:

Click on the project and create a new project. Give any name and hit “create” to proceed.

Siemens Project

Step 9:

The following option will be added to this window as shown in below figure.

Expand “SIM table” and double click on “SIM table_1”.

SIM Table_1

Step 10:

SIM table is added to this window.


Step 11:

Click on icon represent in the red square. Add three tags to the list.

S7 1500 Simulator

Step 12:

Tags that we have used in the program are added now.

S7 1200 Simulator

Step 13:

Go back to the programming environment and test the logic.

Put simulator in start mode. Pressing START will turn ON the output.

Simulator in start mode

Step 14:

Pressing STOP will turn OFF the output.

Simulator in S7-1200 and S7-1500 PLC

Author: Suhel Patel

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