252
25 HIGH-SPEED INPUT/OUTPUT FUNCTION
25.1 High-speed Counter Function
High-speed counter (pulse density measurement mode)
The pulse density measurement mode for high-speed counters is explained below. The pulse density measurement mode is
not supported in high-speed pulse input/output modules.
When in pulse density measurement mode, pulse is counted from count input of the high-speed counter, and the number of
pulses for a specified amount of time is automatically counted.
Parameter setting
Set operation mode to pulse density measurement mode by high-speed counter parameter setting.
Sets detailed settings for channel used.
Navigation window [Parameter] [Module model name] [Module Parameter] [High Speed I/O] "Input
Function" "High Speed Counter" "Detailed Setting" "Basic Settings"
Item Description Setting range Default
Use/Not Use Set whether use counter or not. • Disable
• Enable
Disable
Operation Mode Set operation mode. • Normal Mode
• Pulse Density Assumption Mode
• Rotation Speed Measurement Mode
Pulse Input Mode Set pulse input mode. • 1-Phase 1 Input (S/W Up/Down Switch)
• 1-Phase 1 Input (H/W Up/Down Switch)
• 1 Phase 2 Input
• 2 Phase 1 Multiple
• 2 Phase 2 Multiple
• 2 Phase 4 Multiple
• Internal Clock (1MHz)
Preset Input Enable/
Disable
Not available for high-speed counters (pulse density measurement
mode).
Input logic
Input Comparison Enable/
Disable
Control Switch
Preset Value
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