newport PM500, GPIB Communication trouble

[Marselli]

Hi, everyone.

I`m using LabVIEW 7.1 and GPIB for Newport PM500 Stage.

This Stage & Computer Communication Using PCI GIPB Board (ni).

When I executed Plug & Plug instrument Driver. 

(Downloarded by http://sine.ni.com/apps/we/niid_web_display.download_page?p_id_guid=E3B19B3E9687659CE034080020E74861)

I have Comunication Trouble.

when I scanning Instrumenet by Max. I read message - Instrument did not respond to the *idn? query

how to solve this trouble?

[ni_n_hp_fan]

Are you sure the instrument is designed to respond to the *IDN? query?  Is it SCPI compliant?  In MAX, if you see that an instrument did not respond to *IDN?, it does not necessarily mean that you cannot communicate with the instrument or that there is some problem with your system.  It simply means that the GPIB card was able to find an instrument at some particular address, but was unable to send the SCPI command "*IDN?" and get a response back.  Do you know how old your instrument is?  Do you have a manual listing the different commands that you have available to you?  You might want to start there, open up the GPIB communicator from MAX or IBIC, and try using the ID query calls that are applicable to your instrument.  If your instrument is SCPI compliant, I might start troubleshooting by changing the cable.  Anyhow, just a couple of thoughts.

Message Edited by ni_n_hp_fan on 09-10-2005 11:21 PM

[Marselli]

Thanks for your kindly advice.

My Stage System is purchased  recently.  and PCI - GPIB Board is purchased in 2002.

My PCI-GPIB card is Communicated other instrumenet such as HP Function Generator.

I check communication between HP Function Generator and GPIB Board with Same GPIB Cable 

Manual of Newport PM 500 have two Comunication methord that are RS232 & GPIB.

and I take your advice, Manual Listed commands query communicator form Max.

Some commands are available and some are not.

So Some command - example H (move to initial point)- Move my stage system to initial point but communicator window has tiemeout error.

*idn?  and other command of manual are available before install plug and play.

and I can`t understand SCPI command at all. so I hope you give me a explanation of SCPI.

thanks

[Andy F.]

Marselli,

This issue may be as simple as a setting conflict.  I would make sure that all the settings (baud rate, parity, etc.) line up between the device and PCI-GPIB card.  You should also make sure that you know if your device needs a termination character or not to communicate.  Also you mention that you use the query command when communicating.  You may experience some timeout errors since the Query does both writing and reading.  This might cause errors since some commands may not return a message.  Unfortunately the driver that you spoke of is not supported by National Instruments, but if we get the communication working through MAX then the drivers should work.  Hope this helps!

Regards,

Andy F.