Hi,
Is it possible to share or point us to the Zetron literature explaining this calculation?
If you just read the registers 42091-42093 individually from Modbus2, what do you get?
Alternatively, you can maybe count the digital line directly in Lookout. For this, you would create a Counter object and specify the digital input as the "Count=" input. Not sure if this is a feasible option for you.
Again, if you can share the Zetron documentation, I can take a look at it to see why it may not be working.
Regards,
Khalid