Problem reading negative value modbusrtu?

[Archie]

The next version will possibly be posted within a week.

[Archie]

Version 3.83 is now available. See if that version let's you read negative numbers.

[Martinus]

Hello Archie,

There is no error while reading the large negative value's :-) thats a good thing.
unfortunally there isd a unwanted side affect.

With the previous version of advancedHMI i could read the actual position from my servo drive and display it.
With the latest version i can read the actual position but the value i get back is not right.

This is the same with the speed, the value is a 8 numbered value wich i can't covert or recalculate to the right speed.

I wil do some more testing to see if i can put my finger on the problem

Martinus

[Archie]

Is the position a floating point number or a long integer?

[Martinus]

Hi archie,

The position is a int32 and speed is int16

greets

Martinus

[Martinus]

Ok,

Did some further testing with a clean solution.

When i put my servo drive in  setting 1 then i can make sense of it

0: HighWord-LowWord
1: LowWord-HighWord

The speed wich i'm reading is oke but the position i have to divide by 8 to get the correct answer.

tonight i wl do some more testing

Greets

Martinus