Experimental Physics and
Industrial Control System

Hello,

 

I’m having trouble using StreamDevice to communicate with a TDK Lambda Genesys 30-110 power supply that’s talking to a Moxa NPort 6000 Series terminal server. We are running the same asyn code on another model, the Genesys 50-200, but it has no issue talking to a Moxa or a Digi.

 

When my IOC sends “ADR 06” to the 30-110 all at once, the power supply returns “C01” (illegal command or query), but when I enter the same command manually using telnet, I get “OK” as expected. I also get “OK” if I use asynInterposeDelay and a slow scan rate.

 

However, when my IOC sends this command as one string to a Digi terminal server, I also get “OK”. Is there any reason why I need to use asynInterposeDelay when using one terminal server but not for another?

 

We have a network person looking at the configuration of the terminal servers, but the basic web interface parameters are quite similar. In the meantime, do you have any suggestions?

 

Thanks,

An Le

SLAC National Accelerator Laboratory