Experimental Physics and
Industrial Control System

Tomasz Brys via Tech-talk <tech-talk at aps.anl.gov> · Thu, 6 Feb 2020 15:42:38 +0000

Hi 
I have a beginner question. I want to send via ethernet (TCP/UDP) a waveform from IOC to external device. The waveform consists of binary data and can be big so the Stream Device is not a solution. To simplify the problem, I tested it with longout and a local server listening on port 7777.
In my startup command I have:

drvAsynIPPortConfigure("det-stream", "localhost:7777")

Then I load my db, which is very simple: 

record(longout, "p") {
    field(VAL, “1”)
    field(DTYP, "asynInt32")
    field(OUT,  "@asyn(det-stream)")
}

I started IOC, no errors. But how I can send the VAL over TCP? 
“dbpf p 2” does not work, neither “dbpf p.PROC”
Do I have to write my own implementation of asynDriver?
Is it any differences between sending longout and waveform?

Regards
Tomasz

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System