Modifier

[DavidSr]

I understand using the NOT in front of an address but I don't know what the "Modifier" option under "Design" does. I posted an image here.

[Archie]

Don't confuse the Modifier property with address modifiers. The Modifier property is only related to using the controls in VB code. The address modifier tells the driver how to process the values from the PLC. These are most commonly used with the Modbus drivers since the default is always signed 16 bit integers. An example Modbus address would be 40001 which is a 16 bit signed integer. But if you wanted a 32 bit address, it would become 40001@L. A floating point would be 40001@F

The suffix with an @ symbol is the new address modifier format and the documentation will not been updated until 3.99y is through beta testing. You can read about the modifiers here:

https://advancedhmi.com/documentation/index.php?title=ModbusRTUCom