Issue
Unable to use Calculations on a subLAN device on a 7793
Environment
7793
I/NET
MR controllers
Cause
The 7793 does not pass data between the A and B channel. If your calculation is comparing a point on a different channel than where the calculation resides you will need to modify the sending points global level
Resolution
- Connect to the controller
- Select Edit>Controller>Resident I/O
- Locate the Point you are using in your calculation
- Modify the point
- Set the Global Level to "LAN"
- Click OK
- Modify the point that has the calculation extension
- Change it to Internal
- Click OK