[Urgent]How can I write to physical memory by using LabVIEW 8.2??

[Vss]

Hi everybody,

I am dealing with a project related to micro-EDM. We feed the gap voltage back to a NI DAQ card (not quite sure about the series number, might not be important to this problem), and we want to use this voltage to determine the command position of the motor, which is controlled by a Delta Tau PMAC motion controller. Now the problem is, the NI DAQ card and Delta Tau PMAC controller cannot communicate directly with each other. Therefore, we want the LabVIEW to write the value of voltage to a certain physical memory address, and then let the PMAC controller read that address. Is this feasible by using LabVIEW and NI-DAQ card? Which block or library in LabVIEW shall I use to achieve that? Or is there any alternative way to do it? Thanks a million!

I have to get this done by the end of this week....if you know how to do it, please let me know. I really appreciate it! You are my lifesavor! 

Regards,

Xiaofei

[altenbach]

I am not familiar with your hardware, but have a look at "out port".

http://zone.ni.com/reference/en-XX/help/371361D-01/glang/out_port/

Message Edited by altenbach on 12-10-2007 06:18 PM

[Dennis_Knutson]

That hardware has LabVIEW drivers available. Unless you have very detailed information about the card, using the outport as altenbach mentioned or using VISA Write is going to be very difficult.

[Brian_Beal]

Just an FYI to PMAC users:  PMAC Panel has not been updated to work with Pcomm Server, which is the latest comms method that Delta Tau uses.  ActiveX libraries are installed  when you install PEWIN32, though, and Labview can access these libraries.  Unless you buy the library support, there won't be any documentation, but it is pretty easy to figure out what functions you need to use.  I have done several applications this way.