HP4084 switch matrix controller

[flongnos]

Hello,

Thank you Guenther, it worked indeed. But the status byte is output as a decimal value.

I would like to display a string (message) for each value of the STB, so that I can go on debugging and that in the future the user may be aware of any error.

However it is very inconvenient to enumerate all the cases corresponding to a given bit state. For instance, when bit 0 (Relay ReaDy) is set, I have to associate the same message for STB values 1, 64, 67,...

Is there another way to link a message to a single bit status of the STB?

Besides, I am unable to perform the Relay Test and other calibration procedures, as I lack the calibration modules (HP 16370 A, HP 16355A, HP 16366A/B).

I also don't have the 4062UX system controller and especially the Performance Verification (PV) program. I would like to adapt it in Labview.

Does anyone has the HP Basic code used for this program?  How to make sure the switching matrix is working properly otherwise (other than connecting it to a probecard and checking the shorts on a pattern) ??

Thank you a lot for your help.

[GuentherS]

Hi Florian,

yes, the status byte is a numeric value. The meaning of the bits can change from instrument to instrument, so there is no general sloution for that. I'm afriad you will have to write your own code to make the status byte "readable"

I don't have the HP Basic program. However, if you short all outputs and check the resistance, then leave all outputs open and measure the leakage currents, you should get a very good idea in what shape the matrix is

Good luck

Guenther

[JunkMan]

I strongly recommend a C3600 controller for your system.  You can get one fairly cheap (and supported) from PTS (http://parametrictest.com/)

[flongnos]

Hello,

Ok, now I'm quite used to going deep into Programmation Manuals of instruments, and I could implement error codes in readable/usable way. Thank you Guenther.

I have new questions as I move forward with the Labview interface for this HP4062UX tester:

1/ I have a port expander coming with the tester; the installation manual of the tester only specifies the use of ports 11, 12, 31,41, 33, 43 of this port expander. As I would need extra ports, I wonder if other ports can be used as well, and for which purpose(s).. Do anyone knows about it, or where to find it?

2/ In the HP 4062 Command Reference Manual, it is mentioned that the corresponding port numbers for the port expander range from 32721 to 32732. If I guess right, based on the HPIB operation manual for the HP4085 Switching Matrix, we could extend the GPIB commands for those ports using AUX Ports 1x, 2x, 3x, 4x with x=1 to 3 as argument port_number of PC and PT GPIB Commands. Subsequently, port_number 5,6,8 and 9 are not longer active with a port expander (see FNAux function of system controller). I have to check but any input on that would be great...

3/ As a corollary of my first question, I would like to know where I can connect the OUTPUT of my Pulse Generator? Which AUX Port would be the most suitable?

Thank you.

Florian

[flongnos]

Hello guys,

Well, I still haven't solved the Port Expander issue, but I can use the AUX Ports 11,21,31 and 41 associated to the port numbers 5,6, 8 and 9.

Now, I would like to ask: in the 4085B switching matrix, the relays for FORCE and SENSE seem to be linked. Then I expected that I could read current or voltage through SMUs without activating extra relays. However, now I noticed that even when the voltage is applied correctly onto desired Pin Boards, the HP 4142B reads back no current.

After investigation here is what I know:

- the HP4142B can read current, with the resistance connected to the appropriate outputs of the interconnection cable terminal box

- the voltage is correctly applied onto the desired two pins, after check with a multimeter

- the current read through the resistor connected to these two pins is consistent (with multimeter)

- the current value read on HP4142B is at noise level (~1E-13A)

Did any one experience such an issue with HP4062UX?

Thank you for your help.

Regards.

[Whiteagle]

The system documentation you are seeking can be found in the HP 4062F operation and installation manuals...

Locate HP 4062F manuals as best you can...

Attaches is a start...