LEP MAC 5000 controller vi

[yqgao]

Does anyone here use this system ? We are trying to build our own program, however, the commands cannot be recognized by this equipment, even the communication port is working.

Thank you very much.

[Chris V]

Hi yqgao,

How are you trying to communicate with this device? GPIB? Serial?

What hardware do you have to accomplish this?

How are you currently sending the commands?

What are you building the program in? LabVIEW? What version?

Have a great day,

Chris

[yqgao]

Thanks for your reply. We use USB-RS 232 converter, Labview 8.6 on Win 7 (64 bit). We have an old version labview vi's from the company, howeve, this is not easy to read. The Port can been seen from MAX, and run basic serial prot write and read is ok, MAC 5000 was set low(not exactly sure).

[Albert.Geven]

In this case you need serial (visa) drivers. That it is a usb connection is irrelevant except when it has an incomplete driver.

[yqgao]

I have installed USB-SR 232 driver, if I unstand the word "driver"right.

[Albert.Geven]

Hi

The real problem with serial is, most of the time anyhow, cabling and portsettings.

Do you have tested with a straight and a cros cable? And are you sure that endcharacter, baudrate and other settings are correct?

[Chris V]

Hi yqgao,

What Albert is referring to are the VISA drivers that can be downloaded from here: http://www.ni.com/nisearch/app/main/p/bot/no/ap/tech/lang/en/pg/1/sn/catnav:du,n8:3.25.123.1640,ssna...

And I agree, it's important to make sure that the cabling is all correct so make sure that all of those settings (end character, baud rate, etc.) are set correctly according to the MAC 5000 manufacturer specifications.

Have a great day,

Chris

[yqgao]

Thank you for the reply, however, I could not find the driver before I posted it here. As the company replied, they stopped using Labview in their development for long. The .llb labview files they offered are based on labview 4.0.  Finally some helpedm me upcovert them into 8.2 (thanks to the thread about upconversion in this forum). The write port is not visa address, and some vi's are not inside the 8.6, I tried to replace these vi's with VISA, no luck yet. Does anyone help me?

[Dennis_Knutson]

All of the VIs are in either the llb or in 8.6. The lowest level serial functions are actually wrappers around VISA functions. You have not shown your attempt to replace the old serial functions so I don't know what to say.

The old serial functions used port 0 to refer to Com1, port 1 was Com2, etc. Be sure to set the values in MAC2000 Globals.vi to match what you have before running anything.

[Chris V]

Hi yqgao,

Could you restate the problem you are having now?  The Library seems to open up just fine for me and everything seems to be in order.

Have a great day,

Chris