Experimental Physics and
Industrial Control System

Hinko Kocevar via Tech-talk <[email protected]> · Wed, 11 Dec 2019 10:07:10 +0000

Hi,

I have, what may be perceived as a very "polite" device, talking to a streamdevice based IOC. With polite I mean that it sends the string

Hello. Please enter your command:

every time a telnet session is opened - opening a telnet session is what the streamdevice/asyn does as well. Nice for humans, but not so nice for my rudimentary protocol file. I wouldn't be bothered by it if the device would not close the connection after 30 seconds of inactivity. Then as the user would try to operate device, by sending some command, asyn automatically reconnects, and this nice message messes up my protocol response handling. There might be several ways to workaround this inconvenience i.e. repeat the command again and now it would be handled properly, or introduce a constant poke-the-device approach to keep the telnet session up.

Is there a way to get that message to be ignored in streamdevice protocol file?

TIA,
//hinko

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System