Using Two Motion Boards in Parallel
PrintOverview
This example show how to synchronize to NI Motion control boards so that they can run in parrallel. This example uses software timing.
Downloads
Filename: 2_motion_boards_lv8.vi
Requirements: View
Filename: 2_motion_boards_lv82.vi
Requirements: View
This example uses the rendezvous function to synchronize two motion boards so that they run a straight line move at almost exactly the same time. The example is simply the "One-Axis Move with Position Monitor.vi" shipping example, modified for two boards.
NOTE: We recommend that in almost all cases, you do not need to use this example unless you are trying to control more than 8 Axes. If you are trying to control 8 or less Axes, you should purchase a Motion board which contains enough axis for your situation, as synchronizing axis on the same board works best (as opposed to synchronizing axes across multiple boards) and it allows you to take advantage of other more interesting features (i.e. 2D, 3D moves, hardware synchronization, etc.).
NI Motion boards do not have a feature which allows you to syncronize two motion boards using hardware. In most cases synchronizing NI Motion Boards using software is more than acceptable, but does allow for imperfect synchronization. If you need to synchronize your motion in hardware, a solution using NI Softmotion might be able to solve the problem.
Requirements
Filename: 2_motion_boards_lv8.vi
Software Requirements
Application Software: LabVIEW Base Development System 8.0
Language(s): LabVIEW
Hardware Requirements
Hardware Group: Motion Control
Hardware Model: PCI-7330, PCI-7332, PCI-7333, PCI-7334, PCI-7340, PCI-7342, PCI-7344, PCI-7346, PCI-7350, PCI-7352, PCI-7354, PCI-7356, PCI-7358, PCI-7390, PXI-7330, PXI-7332, PXI-7334, PXI-7340, PXI-7342, PXI-7344, PXI-7346, PXI-7350, PXI-7352, PXI-7354, PXI-7356, PXI-7358, PCI-7331
Driver: NI-Motion 7.2
Software Requirements
Application Software: LabVIEW Base Development System 8.2
Language(s): LabVIEW
Hardware Requirements
Hardware Group: Motion Control
Hardware Model: PCI-7352, PCI-7354, PCI-7356, PCI-7358, PCI-7390, PXI-7330, PXI-7332, PXI-7334, PXI-7340, PXI-7342, PXI-7344, PXI-7346, PXI-7350, PXI-7352, PXI-7354, PXI-7356, PXI-7358, PCI-7330, PCI-7331, PCI-7332, PCI-7333, PCI-7334, PCI-7340, PCI-7342, PCI-7344, PCI-7346, PCI-7350
Driver: NI-Motion 7.2
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This example program (this "program") was developed by a National Instruments ("NI") Applications Engineer. Although technical support of this program may be made available by National Instruments, this program may not be completely tested and verified, and NI does not guarantee its quality in any way or that NI will continue to support this program with each new revision of related products and drivers. THIS EXAMPLE PROGRAM IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND AND SUBJECT TO CERTAIN RESTRICTIONS AS MORE SPECIFICALLY SET FORTH IN NI.COM'S TERMS OF USE (http://ni.com/legal/termsofuse/unitedstates/us/).