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I would guess the problem is how you are executing fbFileWrite. If this is cyclical ST code, you shouldn't execute the function block twice in the sam...

Is it possible that the system write filter (FBWF or EWF) is enabled? This would cause any persistent data changes to be lost after a reboot.

You could try using FB_LocalSystemTime. This function block will continually return the time as long as bEnable is held on. Here's some code I used to...

Great tips, thank you. I wasn't aware of the Details button in the Login dialog, that must be a new feature. Less head scratching from now on!

@quangdai I see you're using a third party EtherCAT drive (Panasonic). With the Kollmorgen drives that we use, we will run into the problem you're see...

I think the only way this could be done is if the structure has a known format, such as a repeating number of known datatypes. In this case you could ...

I'd love to have a full set of assignment operators in ST, plus pre- and post- increment/decrement. But alas, 'tis not to be. I sometimes find myself ...

I used ladder logic (mostly Allen-Bradley) extensively for 15 years prior to getting involved with Beckhoff/TwinCAT. Where this system really shines i...

I'm a bit unclear on your actual problem. In your screenshot you have this line: bButtonState := BUTTONS.bBUTTON_ENTER; But in the I/O list you are...

In the Process Data tab for the EL6090, switch to Inputs in the top pane and be sure that PDO 0x1A00 is enabled. If this is on then the status of the ...

@a4sheet I went to a week of Beckhoff training in Minneapolis back in 2016. Apparently there were some cancellations so the class ended up being just ...