5: SPECIAL FUNCTIONS
5-10 OPENNET CONTROLLER USER’S MANUAL
High-speed Counter Input Specifications
High-speed Counter Output Specifications
Special Internal Relays for High-speed Counter
Note: Special internal relays M8131 through M8134 go on for only one scan.
Special Data Registers for High-speed Counter
In the first counting cycle, the value stored in D8047 at the second scan is used as a preset value to compare with the cur-
rent value. In subsequent counting cycles, the D8047 value at the moment when coincidence occurred is used as a preset
value for the next counting cycle.
Gate and Reset Inputs for High-speed Counter
Any input or internal relay number can be designated as a high-speed counter gate input and reset input using Function
Area Settings > Others > Enable High-speed Counter in
WindLDR.
Clearing High-speed Counter Current Value
The high-speed counter current value is cleared to zero in five ways:
when the CPU is powered up,
when a user program is downloaded to the CPU,
when the phase Z or reset-to-zero input at terminal No. 4 is turned on,
when the communication enable button on the CPU module is pressed, or
when the reset input (not the high-speed counter reset input) designated in the Function Area Settings is turned on.
Maximum Counting Frequency 10 kHz
Counting Range 0 to 65535 (16 bits)
Input Voltage 24V DC ±15%
Input Impedance 6 kΩ
Comparison Output 1 point (terminal 5 on the CPU module)
Output Device Transistor sink or source output depending on the CPU module type
Output Power Voltage 24V DC ±15%
Output Current 500 mA maximum
Comparison Output Delay 20 µsec maximum
No. Description ON OFF Operation R/W
M8010 Comparison Output Reset Turns off comparison output — Continuous R/W
M8130
Up/Down Status
Counting up Counting down Continuous Read
M8131
Comparison ON Status
Comparison ON —
ON for 1 scan
Read
M8132
Current Value Zero-clear
Phase Z input ON —
ON for 1 scan
Read
M8133
Current Value Overflow
Overflow occurred —
ON for 1 scan
Read
M8134
Current Value Underflow
Underflow occurred —
ON for 1 scan
Read
M8135
Comparison Output Status
Comparison output ON Comparison output OFF Continuous Read
No. Description Updated Read/Write
D8045 High-speed Counter Current Value Every scan Read only
D8046 High-speed Counter Reset Value — R/W
D8047 High-speed Counter Preset Value — R/W
No. Description ON OFF R/W
Any Input or Internal Relay High-speed Counter Gate Input Enables counting Stops counting R/W
Any Input or Internal Relay
High-speed Counter
Reset Input
Resets the current value
to the D8046 reset value
— R/W
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
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