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National Instruments Direct Injector Driver System Manual
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encoder patterns only. When the encoder is mounted to the crankshaft of a four-stroke engine, then a cam
signal must be provided to mask every other encoder Z pulse (FALSE = Mask, TRUE = Pass). When the
encoder is mounted to the crankshaft of a two-stroke engine, or the camshaft of a four-stroke engine, then
masking may be disabled via the Engine Position Tracking Setup window EncZMask control so that every
encoder Z pulse passes through to the EPT cam input.
CamX_DigChanAsn
Tip Strip: Assigns digital signal source to cam signal
Detail: There are two available Cam signal destinations named Cam1 and Cam2. Both have similar function.
For EPT encoder patterns, one of the Cam signals can be selected, via the Engine Position Tracking Setup
window, as the mask for the encoder Z pulse. For EPT N-M or N+1 patterns, one of the cam signals can be
selected as the direct EPT cam trigger input for four-stroke engine phase information. Other functions can
be implemented on the Cam signals for capturing the angle of the cam rising edges, configured via the Cam
Phase Capture tab of the Engine Position Tracking Setup window.
PFIX_DigChanAsn
Tip Strip: Assigns digital signal source to channel during Direct and TMP Modes
Detail: Four PFI channel destinations are available which will directly command the PFI channels from the
selected digital signal source. These destinations are only available when a PFI Driver module is inserted in
the assigned slot . In order to utilize this direct command functionality, the PFI Driver module must be placed
into Direct Mode or TMP Mode via the PFI Module Control tab of the PFI and LS Driver Setup window.
DIX_ChanX_DigChanAsn
Tip Strip: Assigns digital signal source to channel during Direct and TMP Modes
Detail: Up to twelve DI Driver channel destinations are available which will directly command the DI Driver
channels from the selected digital signal source. The application of these destinations depends on which DI
Driver modules are inserted in the assigned slots . In order to utilize this functionality, the associated DI Driver
module must be placed into Direct Mode or TMP Mode via the associated DI Driver Setup window.