Experimental Physics and
Industrial Control System

Jörn Dreyer via Tech-talk <tech-talk at aps.anl.gov> · Thu, 26 Oct 2023 13:02:22 +0200

Hello,

while converting an application from pva to pvxs I ran into a strange problem that I could not solve.
I added pvxs to an IOC and observed a strange error from pvxput telling that the requested PV is seen on two ports of the host running my IOC: at 5075 and something > 30000.
After some fighting with the startup script, I figured out that I still had pva (qsrv) in my IOC included. After removing it, the error disapeared, but still I get an error that I can not write the variable. 

Error St13runtime_error: Unable to assign value from "0"

when using pvxput pv:name 0. It perfectly works with pvput! Realy strange. I have no clue whats going wrong.

Regards,

Jörn

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System