Instrument Control (GPIB, Serial, VISA, IVI)

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E3631A wont responde

I try for example the simplest command, �IDN?�, in HyperTerminal or a similar program to get feedback from HP power supply E3631A. But I don�t get any response. After a while I get �Input buffer overflow� on the instrument display, so I seem to have contact. I have the correct baud rate and settings, cause if I change the baud rate on my computer, I get �RS-232 framing error�.
Neither do I get the �OUTP ON� to work.
What do I do wrong??

Regards Magnus
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Message 1 of 5
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Sounds like a bad baudrate setting. Can you verify that all of your settings match what the hardware expects? You'll need to check:

Baudrate
Data bits
Stop bits
Parity
Flow control
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Message 2 of 5
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My settings:
E3631A
Baud rate - 9600
Parity - None
Databits - 8
Start bits - 1 (fixed on instrument)
Stop bits - 2 (fixed on instrument)
Flow control - no settings

COMPUTER
Baud rate - 9600
Parity - None
Databits - 8
Start bits - 1 (fixed)
Stop bits - 2
Flow control - none (I have tried HW as well)

I have double checked!
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Message 3 of 5
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Hmmm - unfortunately if the settings match and you are having problems with hyperterm, then you may need to contact HP to debug the meter.
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Message 4 of 5
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Problem solved!
After opening the instrument and resoldering the RS232 connector everything seems to be working just fine. It must have been a loose contact!
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Message 5 of 5
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