Automation Direct CTT-1C-D24 - Page 58

Digital Counter / Timer / Tach User Manual, 1st Ed.
2-45
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CTT Counter Functions
2-Stage Counting (StA6E 2)
Counting Up / Counting Down (Udb)
Mode F (
F
)
When the count present value PV counts up or counts down to
the count setting value SV1, Output 1 will turn ON momen-
tarily for the time set in the output pulse width parameter
(
tout1
) or will be maintained ON if the output pulse width
parameter (
tout1
) is set to 0.00. When the count PV counts
up to the count SV2, Output 2 will turn ON. The count PV
will continue to increment or decrement with each input signal.
The leading edge of a “reset” input signal at RST1 will turn
OFF both outputs, reset the count PV to 0, and prohibit an
input signal from incrementing or decrementing the count PV.
The trailing edge of the “reset” signal at RST1 enables counting
to begin.
The “reset” signal minimum pulse width is set by reset pulse
width parameter (
rtSr
) or DIP Switch 8.
Output Modes:
Stage 2
Input Mode UdB
Output Mode F
Note: T1 momentary ON time set in output
pulse parameter (tout1), setting tout1=0.00
results in output 1 maintained ON.
T1 T1 T1 T1
T1T1
999999
RESET
SV2
SV1
OUT2
OUT1
PV
0
2-Stage Counting (
StA6E 2
)
In 2-Stage Counting, count setting value SV1 controls Output 1 and count setting value SV2 controls Output 2.
Output 1 will turn ON momentarily for the time set in the output pulse width parameter (
tout1
) or will be main-
tained ON (
tout1
set to 0.00). Output 2 will turn ON momentarily for the time set in the output pulse width
parameter (
tout2
) or will be maintained ON depending on the output mode selected.
Counting Up / Counting Down (
Ud b
)
Each leading edge of the input signal at CP1 will increment the count present value PV by 1.
Input Mode:
Each leading edge of the input signal at CP2 will decrement the count present value PV by 1.
Counting up/down