Asyn Delay

[Robert Emery <duma@u.washington.edu>]

I am using ASYN to communicate with 12 power supplies via an E5810 
Ethernet/GPIB gateway from a Linux IOC.  I am periodically (1 sec) 
reading 24 parameters from the supplies (voltage and current for each 
supply) and am setting the current (3 supplies at a time) when the 
operator turns a dial at the console.  The problem that I am having is 
that when the current/voltage requests are processed I see about a 1 s 
delay in the response to the current set messages.

It takes the power supplies about 50 ms to respond to a request for 
current or voltage information.  If these requests are backing up in the 
ASYN port queue, I would make sense that I would see this type of delay.

Can I speed up the processing of my current set messages by setting up a 
second ASYN port on the same IOC connected to the same gateway?  With a 
higher priority?  Or is there a better way to speed up my set messages?

Thanks
Rob Emery
UW Medical Center