Automation Direct CTT-1C-D24 - Page 41

Digital Counter / Timer / Tach User Manual, 1st Ed.
1-800-633-0405
2-28
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 param-
eter (
tout2
) or will be maintained ON depending on the output mode selected.
CTT Counter Functions
2-Stage Counting (StA6E 2)
Counting Up (UP)
Counting Up (
UP
)
With the input signal OFF at input CP2, each leading edge of
the input signal at CP1 will increment the count present value
PV by 1. Turning ON the input signal at CP2, will prohibit
the input signal at CP1 from incrementing the PV.
Input Mode:
Mode F (
F
)
When the count present value PV counts up to the count
setting value SV1, Output 1 will turn ON momentarily 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 setting value SV2, Output 2 will turn ON. The count PV
will continue to increment 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 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:
With the input signal ON at input CP1, each trailing edge of
the input signal at CP2 will increment the count present value
PV by 1. Turning OFF the input signal at CP1, will prohibit
the input signal at CP2 from incrementing the PV.
999999
RESET
SV2
SV1
OUT2
OUT1
PV
T1 T1
Stage 2
Input Mode UP
Output Mode F
Note: T1 momentary ON time set in output
pulse parameter (tout1), setting tout1=0.00
results in output 1 maintained ON.
0
Prohibit
A
A
0
1
2
3
4
5
H
L
H
L
0
CP1
CP2
Present
Value
CP1: Counter input prohibited CP2: Counter input
Note: has to be larger than width of min. Input signal
A
Counting up
Prohibit
A
A
0
1
2
3
4
H
L
H
L
0
CP1
CP2
Present
Value
CP1: Counter input CP2: Counter input prohibited
Note: has to be larger than width of min. Input signal
A