Where should I start from to use HP4145B with LabView?

Question

I am not familiar with LabView, but I have to set up LabView to make it work with HP4145B.
I downloaded the driver from NI, placed it at the correct directory, and can see VI's in function palette.
Also, when I run MAX, it shows "Instrument 0" under GPIB0.
When I click on "Scan for Instrument", it says something about IDN query, but now I know HP4145B is too old to understand IDN query.
I saw a lot of posts that say they can write to the instrument but cannot read.
However, I don't even know how to test whether my labview can write to 4145B or not.
My questions are....
1. 4145B manual says it has "ID"  code.
I tried testing it by using "Interactive Control"
And I got this by NI Spy
1.  ibsic(GPIB0)
Process ID: 0x00000C1C         Thread ID: 0x00000EB4
Start Time: 15:23:22.485       Duration 00:00:00.000
ibsta: 0x160       iberr: 0             ibcntl: 0(0x0)
2.  ibsre(GPIB0, 1)
Process ID: 0x00000C1C         Thread ID: 0x00000EB4
Start Time: 15:23:26.070       Duration 00:00:00.000
ibsta: 0x160       iberr: 1             ibcntl: 0(0x0)
3.  ibcmd(GPIB0, "@?1", 3 (0x3))
Process ID: 0x00000C1C         Thread ID: 0x00000EB4
Start Time: 15:24:18.606       Duration 00:00:00.000
ibsta: 0x178       iberr: 0             ibcntl: 3(0x3)
4.  ibwrt(GPIB0, "ID", 2 (0x2))
Process ID: 0x00000C1C         Thread ID: 0x00000EB4
Start Time: 15:24:30.242       Duration 00:00:00.010
ibsta: 0x168       iberr: 0             ibcntl: 2(0x2)
5.  ibcmd(GPIB0, "? Q", 3 (0x3))
Process ID: 0x00000C1C         Thread ID: 0x00000EB4
Start Time: 15:25:12.333       Duration 00:00:00.010
ibsta: 0x174       iberr: 0             ibcntl: 3(0x3)
> 6.  ibrd(GPIB0, "", 20 (0x14))
> Process ID: 0x00000C1C         Thread ID: 0x00000EB4
> Start Time: 15:25:23.289       Duration 00:00:16.784
> ibsta: 0xc164       iberr: 6             ibcntl: 0(0x0)
There are four LED's on the front panel of HP4145B.
It shows status of HP4145B whether it is talker or listener.
LED changes properly to my command. (So I don't think there is any problem with harware connection)
But, I still get nothing but EABO error when I want to read something.
What am I doing wrong?
How can I test "ID" code?
(I do not have ultra-fast typing speed so I think I gave 4145 enough time to respond before I typed new command)
2. I tried to use driver I downloaded from NI.
Other posts say that people used "HP 4145 Example.vi" for testing.
However when I put "HP 4145 Example.vi" on the block diagram, I cannot run it.
How do I test with "HP 4145 Examble.vi"?
3. I tried testing other vi's such as "HP 4145 source setup.vi".
I put that vi on the block diagram window, added constant of 17 to GPIB address,
and other constants to other inputs and run it.
A new window popped up, so I ran it again.
However it does not seem to work since I see no change when I go into source set up menu directly from HP4145 front panel.
Again, LED indicator changes to LTN(which means HP4145B is in listener mode) when I run vi.
What would be the problem?
I'm experiencing a lot of trouble with this HP4145B, and I know too little to solve this by myself.
Somebody please help me with this.
Thanks in advance.

Answer 1

My 4145b uses address 17.
I checked switch setting on the backpanel of 4145b and CRT on the front panel says "HPIB(17, COMMA, EOI)". Also, when I change address to 16 and execute vi file, it gives me an error message of "HP 4145 Define Channel; HP 4145 Send Message"
When I change back to 17 and execute, error message disappears(and no more error message comes in when I send command to 4145b), but nothing happens on 4145b.
As I said eariler, LEDs on 4145b seems to be saying that 4145b understands basic command such as "change to listener" or "change to talker".
In addition, when I try to read from 4145b from "HP4145 example.vi", for example by clicking on "Display Graphics and Plot" and execute, I get error message "HP 4145 Take Measurement; Wait for Interrrupt (GPIB)". However, reading is not the problem to think right now because I don't even know how to read.
I have Newport 1830-C with me, and I checked this instrument with same GPIB-USB-HS and same PC I am using with HP4145b.
It works with 1830C. Therefore, it doesn't look like there is something wrong with  my PC and GPIB-USB-HS.
Anyway, thank you for your attention.
메시지가 06-25-2008 01:28 AM에 Min Yoon에 의해 편집되었음
메시지가 06-25-2008 01:36 AM에 Min Yoon에 의해 편집되었음