Firstly have you set up your Device? If you have not set up you may look into device setup a yellow button icon that look like PLC. Secondly have you set up your point? Example if you have 2 points you need to set up your 2 points in point editors Thirdly how would you like your update of the calculation to be like event base or time trigger? Scripts are written using animation editor you may call this script base on an interval timing or base on a certain event Do note that result will be and internal point for your display using Text and you can name it as Result Example Code: $Result = $D100+$D10
