X3 access violation when writing a single bit

[BMGTobi]

Hello community,

I´m using a crtlX Core X3. When I´m writen a single bit of a DINT variable, than the PLC stops with an access violation.

Example: (myDint : DINT;)

myDint.1 := TRUE;

If I run the project in the simulation with a virtual ctrlX, it works, with the real hardware, I have an access violation.

What could be the problem. Maybe someone has an idea?

[AndreasL]

This behaviour is nothing i've experienced.

Is the myDINT mapped as a symbol or on an input/output? 

[CodeShepherd]

@BMGTobi please also add the used versions of the ctrlX PLC Engineering, ctrlX WORKS (and so ctrlX COREvirtual) and ctrlX PLC app.

[BMGTobi]

ctrlX PLC Engineering: V1.20.1

ctrlX Works: V1.20.5

ctrlX PLC App: V1.20.0

[HmiGuide]

To ensure, that it is not a problem with the variable:

• Can you set the variable without an error? e.g. myDint := 10;
• Does the problem also exist with a new program with only one instruction DInt.1 := TRUE; ?