[time-nuts] hp 54600a and rs-232
actast at hotmail.com
Tue Apr 22 14:27:53 UTC 2014
This may help:
> From: CollinG at navcanada.ca
> To: time-nuts at febo.com
> Date: Tue, 22 Apr 2014 07:21:22 -0400
> Subject: [time-nuts] hp 54600a and rs-232
> While only related to time nuttery in the sense of the hp 54600a being an instrument (oscilloscope) which we nuts might use make some meaningful measurements, I am hoping that members of this list vast knowledge of many such instruments may be able to help or at least point me in the right direction.
> I recently obtained a hp 54600a digital oscilloscope in very good condition and while not a modern whiz bang high bandwidth and high speed instrument it is quite capable and compliments my old Tektronix 5440 scope quite nicely.
> My 54600a has the basic RS-232 interface module which seems to work OK. I am able to select "print screen" and send data from the scope to an HP plotter or printer - computer actually which collects the data stream and converts the hgl data into a png file using a simple script.
> However, my attempts at getting the scope to respond to commands via the RS-232 serial interface are for naught. I am using a USB to RS-232 converter and an appropriate null modem cable. I don't have a proper serial port to try however.
> When I send commands to the scope it will display "framing error" or "overrun" or "rs-232 error (113)" or "rs-232 error (118)" (I can't find either error code listed in the hp documents).
> Being able to capture a "screen dump" is my primary concern and I am able to do so, controlling the scope via rs-232 as I might using a gpib/hpib interface is only secondary but still, it would be nice to know why my limited attempts have so far not worked.
> Ideas? Comments? Suggestions?
> Cheers, Graham ve3gtc
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