Read profibus inputs as INT?

AlexK

Hi,

Is it possible to specify any group inputs or the like as INT so it's possible to get a negative integer value over profibus without the file and serial hadling option where you can convert as raw data.

For example: Have a group of 16 bits input. I want these to take a number between (rounded off for ease of typing) -32000 to 32000.

Best regards,

Alexander K

AlexK2008-8-8 14:17:0

Thilbi

Hi Alexander,

change your groupinput into a analoginput, like this example

current configuration:
-Name "giValueFromPLC" -SignalType "GI" -Unit "PB_Card" -UnitMap
"0-15"

change to:

-Name "aiValueFromPLC" -SignalType "AI" -Unit
"PB_Card" -UnitMap "0-15"
-MaxPhys 32767 -MaxBitVal 32767 -MinPhys -32767
-MinBitVal -32767

When you can read negativ values directly into a NUM-variable.


Best regards
thilbi

AlexK

Thank you very much! That is exactly what I wanted!

Best regards

Alexander