Spectrum Controls 140 EHC 204 00sc - Manual (Page 38)

Counter / Flow Meter Input Module
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Roll over to, Bit 7
When the counter exceeds the maximum count or limit value it will roll over the top. When the
counter rolls over it can roll over to a starting value of zero, or it can start at the user-defined Preset
value. When this bit is set to zero the counter will roll over to zero. When set to 1 the counter will
roll over to the preset value. If the stop on limit flag is set the counter will not roll over until the
flag is released. When released the counter will roll over to its zero or preset value on the next input
clock.
Roll under to, Bit 6
When the counter, counts down to zero it will roll under. When the counter rolls under it can
roll into positive full-scale numbers, or it can jump to the predefined Preset value. When this bit is
set to zero the counter will roll into positive full scale numbers. When set to 1 the counter will roll
over to the preset value. If the stop on zero flag is set the counter will not roll under until the flag is
released. When released the counter will roll under to its maximum or preset value.
Unused, Bits 5-2
Apply M to Rate, Bit 1
If this bit is set to 0 the M factor will be applied to the Rate data value. When set to one, the M
factor will be applied to the rate value.