Yaskawa MotionWorks IEC - Manual (Page 252)

PLCopenPlus Function Blocks for Motion Control 2013-04-13 244
The Sigma-5 servo amplifier specification indicates the minimum interval
between latches to be 500µs. Any latches that occur during the 500µs
re-arming interval will be ignored.
If the PatternSize is greater than 1, only the latches that occur in the
exact sequence specified by Pattern will be stored. Any other latches
that occur out of sequence will be ignored.
Upon the rising edge of Enable, there will be a short time when the
function is busy, but the outputs are not valid yet. This is the time when
the amplifier Pns and the Latch mode enable function are sent to the
amplifier.
This function block is a hybrid between an ‘Execute’ and an ‘Enable’
function block model. If PatternCount=0, latches will continue to be
stored until the Enable input goes low. If PatternCount is non zero, then
when the PatternCount has been reached, the Busy output goes false and
Done becomes true.
At the rising edge of Enable, PatternSize, PatternCount, and Pattern will
be checked to be within range and then sent to amplifier Pn’s 850, 851,
and 852~853 respectively.
Related Function Blocks
Cam Toolbox - CamSlave_FeedToLength2: For camming applications that
index a slave forward in one direction and require on the fly adjustments
of the actual index length based on a sensor input.