Experimental Physics and
Industrial Control System

Rod Nussbaumer <[email protected]> · Thu, 31 May 2012 08:42:38 -0700

tzk6s:

My version of ibtest does not display 'EDVR', but I think the EDVR

status is irrelevant if IBERR is zero. The response is saying that 25

bytes were delivered to the instrument, but your command string only

contains 20 visible characters, and that seems unusual. Did the

instrument respond as you expect? If the instrument supports some kind

of query commands, have you tried sending a query, and then reading the

response? The '*IDN?' query is a common SCPI query that many instruments

implement, which normally returns a string that describes the make,

model, and feature set of the instrument.

Rod Nussbaumer
ISAC Controls, TRIUMF
Vancouver, Canada.

tzk6s wrote:

Hi, everyone:
I'm trying to connect a GPIB device via LINUX-GPIB.The driver for NI
GPIB card had been setup successfully.When testing with "ibtest" ,I got
the erro:
[root@localhost etc]# ibtest
Do you wish to open a (d)evice or an interface (b)oard?
(you probably want to open a device): d
enter primary gpib address for device you wish to open [0-30]: 3
trying to open pad = 3 on /dev/gpib0 ...
You can:
w(a)it for an event
write (c)ommand bytes to bus (system controller only)
send (d)evice clear (device only)
change remote (e)nable line (system controller only)
(g)o to standby (release ATN line, system contro! ller only)
send (i)nterface clear (system controller only)
ta(k)e control (assert ATN line, system controller only)
get bus (l)ine status (board only)
go to local (m)ode
change end (o)f transmission configuration
(q)uit
(r)ead string
perform (s)erial poll (device only)
change (t)imeout on io operations
request ser(v)ice (board only)
(w)rite data string
: w
enter a string to send to your device: :CHANnel1:CURRent 0.5
sending string: :CHANnel1:CURRent 0.5
gpib status is:
ibsta = 0x8100 < ERR CMPL >
iberr= 0
EDVR 0: OS error
ibcnt = 25
Is there anything I missed?

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System