This is how you re-range a transmitter in the ABB Harmony DCS System.
Look for the tag in the Control Engineering tool. Right-click on the tag and select “Goto CLD” in the context menu.
![Xybernetics ABB 800xA](http://www.xybernetics.com/techtalk/ABB800xA-RangingAI/images/SS01.png)
Locate the AO/L and the CIS Interface function block.
![Xybernetics ABB 800xA CLD](http://www.xybernetics.com/techtalk/ABB800xA-RangingAI/images/SS02.png)
Double click on AO/L function block for the AI. For our example it would be for the tag 4-FI1225 and change the value for “Eu Zero of Input (S01)” and “Eu Span of Input (S1)” to 0 and 200 respectively (from 0 and 100). Click on Ok button once done.
![Xybernetics ABB 800xA FCode FC 30](http://www.xybernetics.com/techtalk/ABB800xA-RangingAI/images/SS03.png)
Next, double click on the CIS Interface function block. OuR AI is conected to the #3. Modify it to 0 to 200 as well. Click on Ok button once done.
![Xybernetics ABB 800xA FC30 Engineering Unit](http://www.xybernetics.com/techtalk/ABB800xA-RangingAI/images/SS03.png)
Save the CLD and download it to the respective DCS controller.