Allen-Bradley MicroLogix 1400 Instruction Manual page 126

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124 Using the High-Speed Counter and Programmable Limit Switch
HSC Mode 8 Examples
I1:0.0/1(HSC0)
(A)
OFF
ON
OFF or ON
X
HSC Mode 9 Examples
I1:0.0/0(HSC0) I1:0.0/1(HSC0)
(A)) (B)
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF or ON OFF or ON
OFF OFF
X X
X X
Publication 1766-RM001A-EN-P - October 2008
I1:0.0/1(HSC0) Value of CE Bit
(B)
TRUE
TRUE
OFF or ON X
X FALSE
HSC Mode 9 - Quadrature X4 Counter with External Reset and Hold
I1:0.0/2(HSC0) I1:0.0/3(HSC0)
(Reset) (Hold)
X -
X -
X -
X -
X -
X -
X -
X -
OFF X
ON X
OFF ON
OFF X
Accumulator and Counter Action
Count Up Acc. Value
Count Down Acc. Value
Hold Acc. Value
Hold Acc. Value
Value of CE Bit Accumulator and Counter Action
TRUE Count Up Acc. Value
TRUE Count Down Acc. Value
TRUE Count Down Acc. Value
TRUE Count Up Acc. Value
TRUE Count Down Acc. Value
TRUE Count Up Acc. Value
TRUE Count Up Acc. Value
TRUE Count Down Acc. Value
X Hold Acc. Value
X Reset Acc. to Zero
X Hold Acc. Value
FALSE Hold Acc. Value