Specifications
10. Additional Special Devices and Instructions
10-1
10.1. New Special M and D Devices
Double Frequency Select Function of High Speed Counter
The version 5.5 (D1005=K5301) and above of ES / EX / SS series
models support this function.
1. New Special Data Registers:
The content value of data register, D1022 will load in the first scan time
when PLC switches from STOP to RUN.
Device No. Function Description
D1022
Use counting method of counter setting
double frequency
D1022=K1 Select (normal frequency) mode
D1022=K2 Select (double frequency) mode
D1022=K4 Select (4 times frequency) mode
2. Double Frequency Mode
AB Phase Input
1
(normal
frequency)
A
-phase
B-phase
Counting
up
Counting
down
2
(double
frequency)
A-phase
B-phase
Counting
up
Counting
down
AB Phase Input
4
(four times
frequency)
A
-phase
B-phase
Counting
up
Counting
down
Only AB phase high speed counter provide the double frequency selection
function to set double frequency.
Pulse Input with Acceleration / Deceleration Functions Explanation: The
version 5.5 (D1005=K5301) and above of ES / EX / SS series models
support this function.
1. Meanings of Special M and D Devices:
Device No. Function Description
M1115 Accel/Decel pulse input start switch
M1116 Acceleration flag
M1117 Arrival target frequency flag
M1118 Deceleration flag
M1119 Completed function flag
D1104
Used parameter index value
(for D devices)
2. Parameter List (The available range of using D device is D0 to D596 for
ES series models and the frequency range is 25Hz~10KHz.)