Connect two 7344 motion controllers in one PC

Can I use two NI - PCI 7344 motion controllers in one PC. My application requires 6 axis and hence I want to use two PCI 7344 motion controllers. I am already using one. Can I configure another one in the same PC to add more axes to my current system. If yes, then how to configure the other one, so that it acts as the 5th and 6th axes in my system. I'm using LabVIEW 7.1 in my application.
Regards,
Giridhar Rajan
Automation Engineer
Cruiser Controls
Mumbai, India

You can add as many PCI-7344 boards to your PC as you want. The only
limitation is the number of PCI-slots available. In your software you
need to control the axes from the second PCI-7344 seperately from the
axes of the first one. That means that there are no built in methods to
start the axes on two or more boards synchronously. If this is not a
feature that you need then everything is quite straight forward. If you
need tight synchronization you might write an onboard program that's
running on the second board and that waits e. g. for a breakpoint
signal to be generated by the first board immediately after the axes
are started.
Assumed that you need tight motion synchronization with the additional
axes a better choice would be to use one PCI-7356 (6 axes) or a
PCI-7358 (8 axes) instead of two PCI-7344. The 735x boards are pin- and
software-compatible to the 734x boards. You could return your 7344 to
NI and buy a 735x board with a fair discount ("hardware upgrade"). If
this is an option for you please contact your local NI branch.
Best regards,
Jochen Klier
National Instruments Germany

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