"ID?" isn't a typo. The 3458A DMM doesn't quite follow the usual conventions.
I have tried "*IDN?", which the device tells me (via its front panel) is an error.
On 4/19/19 1:33 PM, Eric Norum wrote:
> My reply about a typo contained a typo. The SCPI command in question is “*IDN?”.
>
>> On Apr 19, 2019, at 1:06 PM, Michael Davidsaver via Tech-talk <[email protected]> wrote:
>>
>> All,
>>
>> I've come across a new (to me) oddity involving GPIB communication between
>> a Keysight/Agilent E5810A GPIB to ethernet bridge, and a Keysight/Agilent/HP
>> 3458A DMM. I'm contacting Keysight support, but thought I'd see if someone
>> had already run across this issue.
>>
>>
>> It appears that the DMM is receiving commands which I send.
>> "BEEP" makes the DMM beep. If I send an invalid command I can
>> read the error message through its front panel.
>> However, valid commands which should send a reply (eg. "ID?") don't
>> trigger an error, but also timeout without sending back any reply string.
>>
>> I see the same behavior with a second 3458A. Also when sending commands
>> directly through the embedded web server in the E5810A or a python vx11 client.
>>
>> I tried two different GPIB devices (Keithley and Datron DMMs) with the same
>> E5810A and cable. Both send back replies and otherwise behave as I expect.
>>
>>
>> Thanks,
>> Michael
>>
>>
>> Also, a random fact for Friday. I was on a flight from JFK to LHR
>> which was listed as 3458 miles.
>
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