[time-nuts] HP5386A GPIB
Hui Zhang
ba6it at 163.com
Mon Jun 18 13:54:49 UTC 2012
Hello Ton:
Thanks for your reply. I tried to send 0x040A to HP5386, but I did not receive any response. I pressed RESET button when I got "52" error message, the error message disappeared and frequency reading displayed in the receive buffer area of my Serial port Assitant software.
Hui
At 2012-06-18 15:29:07,Ton <ton at mubo.nl> wrote:
>Hello Hui,
>
>I found that I needed:
>Ag488Wrap.ibeos(devDesc, 0x040A); // 04 = terminate read when 0A = /n is
>detected
>as part of the initialization. Without this, the communication with my
>5384A timed out.
>
>Also, see what happens when you press the reset button when you get
>error 52 while you continue to loop on ibread with a timer.
>
>Best regards,
>Ton
>
>
>On 17-Jun-12 17:45, Michael Blazer wrote:
>> Hui,
>> The older instruments have a very simple command structure. You don't
>> need the "?" to query. Typically just doing a GPIB Read command
>> (ibread for NI controllers) will address the counter to output and it
>> will send the current reading. This can cause a problem if you request
>> data too soon after a setup command. You'll get the previous reading.
>> The "ENTER S ; N$" command just reads from address "S" into the
>> variable "N$".
>> It sound like you need the command to your USB-GPIB controller to get
>> it to read. The counter is probably ready to send the data, the
>> controller just needs to initiate its read cycle.
>>
>> Mike
>>
>> On 6/17/2012 10:17 AM, Hui Zhang wrote:
>>> I have a old HP5386A counter and a OEM USB-GPIB controller(no tech
>>> support), I use a serial port debug program to send command via
>>> USB-GPIB to HP5386A, when I send "FU2"(Measure period) or
>>> "DI"(increment display digis), the 5386 response the command and
>>> worked well, the other control command in the HP's manual also worked
>>> well.
>>>
>>>
>>> But I don't know how to read the measure value from 5385A, in my
>>> HP3478A mutilmeter case, I just send a "?", it will return voltage
>>> value to software, but at 5386A, the “?” not work, I got error
>>> message "52" on LCD panel.
>>>
>>>
>>> I read the HP5386's manual, the demonstrates used "ENTER" command to
>>> get measure value, but the "ENTER" is a HP-BASIC command of vintage
>>> HP-85 computer. I don't know how to send similar command to control
>>> my counter, can someone give me some advice? Thank you!
>>>
>>>
>>> Hui
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>>
>>
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>
>
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