Error when writing IO signal

bryce268

Hi,

I am trying to write an IO signal using RAB 5.11, and I get the following error:

ABB.Robotics.GenericControllerException:  Write of unblocked in-signal not allowed.

Any ideas what this means?

Thanks.

Ingela

Hello,

 

As for input signals, you can only write to simulated (blocked) signals.

bryce268

Ok, that makes sense that it would be that way.

I changed it so it writes to an output that is cross connected to the input, and it works now.

Just out of curiosity, is there any way to change the simulated (blocked) status of a signal from a PC application?

RussD

You can do it from Robot Studio Online if your access levels permit, but it doesn't appear to be supported in the public API.

Mats W.

I wonder if there is no way to set the simulated flag to a signal.
In the reference manual regarding the grant type "Grant.WriteIO", it says:
"Gives access to perform the following: Set I/O signal value,
Set signal as simulated and remove simulation, Set I/O unit and bus as
enabled/disable"
That tells me that is should be possible to change the simulated flag.

/Mats

Ingela

Hello,

 

No, it is not implemented to change simulated via the PC SDK. What you refer to is a general description of the UAS grant WriteIO, i e if the user has the WriteIO grant (implemented in the controller) he is allowed to do these things, but today it is only possible for him to do the first thing (Set I/O signal value) via the PC SDK.