25 HIGH-SPEED INPUT/OUTPUT FUNCTION
25.1 High-speed Counter Function
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High-speed counter (normal mode)
Normal mode for high-speed counters is explained below.
Use normal mode if you want to use as an ordinary high-speed counter.
Parameter setting
Set operation mode to normal mode by high-speed counter parameter setting.
Sets detailed settings for channel used.
■CPU module
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
Set the preset value when preset input is enabled. Change the
current value to the preset value when the preset is detected.
The preset value cannot be set when the preset input is disabled.
• Disable
• Enable
Input logic Sets preset input logic when preset input is enabled. • Positive Logic
• Negative Logic