iDect FC6A series User Manual page 201

High-Speed Counter Operation
The high-speed counter turns on an external output or executes an interrupt program when the current value matches the preset
value (target value).
For how to configure the function to turn on an external output, see "Comparison Actions" on page 5-17.
■ Single-phase high-speed counter
Group 1, group 2, group 5, group 6 single-phase high-speed counter
The high-speed counter has three operation modes, the adding counter, the up/down selection reversible counter, and the dual-pulse
•
reversible counter.
The up/down selection reversible counter and the dual-pulse reversible counter which can count in both directions are supported.
•
These groups support 100 kHz maximum pulse input and are capable of counting in a range from 0 to 4,294,967,295 (32 bits).
•
When the current value and the preset value match or an overflow or underflow occurs, a comparison output turns on or an interrupt
•
program is executed.
These groups support resetting the current value by the reset special internal relay or external clear input. When the reset is executed, the
•
current value returns to the reset value specified by the special data registers. For the reset input details, see "Reset input" on page 5-24.
Counting Mode
Adding counter
Up/down selection
reversible counter
Dual-pulse reversible
counter
Group 3, group 4 single-phase high-speed counter
These groups only support the adding counter.
•
These groups support 5 kHz maximum pulse input and are capable of counting in a range from 0 to 4,294,967,295 (32 bits).
•
When the current value and the preset value match or an overflow or underflow occurs, an external output turns on or an interrupt program
•
is executed.
These groups only support the reset input via a special internal relay. When the reset is executed, the current value returns to the reset value
•
specified by the special data registers.
Counting Mode
Adding counter
■ Two-phase high-speed counter
Group 1-2, group 5-6 two-phase high-speed counter
The two-phase high-speed counter counts by the phase difference between the A-phase and B-phase pulse input.
•
These groups support 50 kHz maximum pulse input and are capable of counting in a range from 0 to 4,294,967,295 (32 bits).
•
Even higher speed counting is possible by specifying 2-edge count or 4-edge count.
•
When the current value and the preset value match or an overflow or underflow occurs, an external output turns on or an interrupt program
•
is executed.
These groups support resetting the current value by the reset special internal relay or external clear input (Z-phase). When the reset is
•
executed, the current value returns to the reset value specified by the special data registers.
Counting Mode
2-edge count
4-edge count
Frequency
Group 2, 6: 100 kHz
Group 1: 100 kHz
Group 5: 100 kHz
Group 1-2: 100 kHz
Group 5-6: 100 kHz
Group 1-2: 100 kHz
Group 5-6: 100 kHz
Frequency
Group 3, 4: 5 kHz
Frequency
Group 1-2: 50 kHz
Group 5-6: 50 kHz
Group 1-2: 25 kHz
Group 5-6: 25 kHz
FC6A S M S
ERIES ICRO MART
A - -O T U ' M
LL IN NE YPE SER S ANUAL
5: F
UNCTIONS AND
Clear Input
—
I2
I5
I2
I5
I2
I5
Clear Input
—
Clear Input (Z-phase)
I2
I5
I2
I5
FC9Y-B1722
S
ETTINGS
5-15