Monitor and Modify Variables in Simatic Manager

In this article, I will show you how to monitor and modify variables from the hardware configuration using the Siemens Simatic manager.

Monitor and Modify Variables

Follow the below steps to monitor and modify variables from the hardware configuration.

Step 1:

Open Simatic manager. Select the “CPU” and double click on “hardware” to enter in to hardware environment.

Modify variables from hardware configuration

Step 2:

The following hardware configuration window will open up.

Simatic Hardware Configuration

Step 3:

To monitor or modify a variable, select digital input or output card and do right-click to open properties as you can see in the below window.

Click on monitor/modify to open a new window.

To monitor or modify a variable, download project to the simulator.

Monitor or Modify Variables

Step 4:

The following window will open up. Here, as I have selected digital inputs, it will only show digital inputs.

Simatic 300 Station Configuration

Step 5:

To monitor the input variable, do checkmark as shown in the below window.

Keep the program in monitor mode to see the status of the input variable.

Monitor the input variable in Simatic Manager

Step 6:

Now to modify the value or to change the status of the input variable, use the modify option.

To modify a value, click on modify value and write “0” or “1” then click on “modify value” to make changes.

Simatic Modify Value

Step 7:

Under modify and monitor option, there is one more tab “ trigger” is available.

Clicking on the trigger will open up a new window.

Here, as you can see triggering options for modifying and monitoring value.

You can set it as per your requirement for a single scan cycle or every scan cycle.

Trigger Point for Monitoring

Author: Suhel Patel

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Monitor and Modify Variables in Simatic Manager

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