Device Control 
Step 1 Change the value from the dashboard 
When the tag is set with the write attribute, the Tag of the data monitoring interface will have a write operation. Click on Write button and input a value to control device. For example, modify the value of the 1!40001 point address with the write attribute, as shown below.

- Click on the 
writebutton at the end of the label to be changed; - Select whether to input in hexadecimal format, not select;
 - Enter a new value for the label, e.g. 123;
 - Click on the 
Submitbutton to submit the new value. 
TIP
This point in the device must also have the writable attribute, otherwise it cannot be written successfully.
Step 2 Check whether the device point value is modified successfully 
Check over the Modbus simulator whether the point value has changed to the same input value as above.
