XMP controllers may be enhanced with additional hardware. These
boards -- These expand the number of axes run by a
controller by adding up to two motion blocks for a total of
16 axes. Unlike main boards, expansion boards do not contain
SHARC DSP processors. They are available for XMP-PCI and XMP-CPCI-6U
form factors only (not available for XMP-CPCI-3U and XMP-SERCOS-PMC
controllers). An expanded XMP-CPCI-6U controller is shown below.
modules -- Scale Interpolation Modules (SIMs) are mounted
mezzanine-style to motion controllers that use encoders with
sinusoidal outputs. These enhance positional resolution significantly
and are available for XMP-PCI and XMP-CPCI-6U controllers only.
A maximum of two SIM4 modules may be added to each main or expansion
board. A SIM4 module is shown below with an XMP-PCI controller.
detailed information regarding SIM4 modules, please refer to Application
Note 206 from Motion Engineering.