mode, the comparator output turns ON when the ON PRESET is reached.
The output stays ON until TIMER1 has elapsed. The output turns ON again when the
OFF PRESET is reached. The output stays ON until TIMER2 has elapsed. By
programming TIMER1 or TIMER2 to zero, only one output pulse per revolution will be
If Output 1 has been configured for TIMER MODE, Output 1 will turn ON when the
encoder value reaches 80. The output will stay ON until the Timer 1 value (in ms) has
elapsed. Output 1 will turn ON again when the encoder value reaches 106. The output
will stay ON until the Timer 2 value (in ms) has elapsed.
ON/OFF Presets and Timer values can be set using Logicmaster Configuration software,
the Hand-held Programmer or %AQ PLC data commands.
Hardware 1–8 Output States in STOP Mode
When the PLC is in the STOP mode, hardware Outputs 1–8 operate as follows with the
different Output Default configurations:
Out Default = NORMAL Outputs continue operating as normal, and if the en-
coder continues to rotate will switch on and off at the
configured preset points.
Out Default = FORCE OFF Outputs switch off and remain off under all condi-
tions in the PLC Stop mode.
Out Default = HOLD LAST Outputs remain in the same state they were in before
the PLC switch to STOP mode, regardless of the
count inputs and the preset point states.
Range Comparators 9–16
Range Comparators 9–16 control eight %I status bits using one ON preset and one OFF
preset per bit. The bits are internally updated every 4 ms and reported to the PLC on
each I/O scan. The ON/OFF preset pairs can be set using Logicmaster Configuration
software, the Hand-held Programmer, or %AQ PLC data commands.
Chapter 1 Introduction
Range Comparators 17–32
Range Comparators 17–32 control 16 additional status bits using one ON preset and one
OFF preset per bit. The bits are internally updated every 4 ms. The ON/OFF preset
pairs can be set using Logicmaster Configuration software, the Hand-held Programmer,
or %AQ PLC data commands.
Range Comparator outputs 17–32 are reported to the PLC on each I/O scan using a %AI
data word. Within the PLC, the %AI word can be copied directly to %Q memory to
control a discrete output module. The %AI word can also be copied to %T or %M
memory to facilitate additional bit oriented operations.
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