Re: Agilent 82357B repeatable hard failure

Michael K via Linux-gpib-general <[email protected]> Wed, 27 Sep 2023 14:37:04 +0000 (UTC)
Newsgroups gmane.linux.hardware.gpib.general
Message-ID <[email protected]>
> On Wednesday, September 27, 2023 at 07:02:51 AM EDT, dave penkler <[email protected]> wrote:
> The 0x164 from the NI-USB-HS is the correct value for ibsta. Did you do one byte reads with ibtest ?

No, that would be too logical 😺 

I tried that and it seems that the device responds to an unsolicited read with " 9.9E + 37". (which according to the manual means  OFLO - Measured value (invalid))
( to do a measurement you are required to send a *TRG) 

On more careful examination, the first byte read by "onebyte.c" is 'R' of the IDN string 'ROHDE&SCHWARZ,NRVD, 101654.002,V1.52  V1.40'.
I guess the device dumps the rest of the string after the first read. After than I read the first byte of ' 9.9E + 37'.

Michael


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