Справочник Пользователя для Mitsubishi Electronics FX5

19  BUILT-IN I/O FUNCTION

19.1  High-speed Counter Function

The rotational speed measurement mode for high-speed counters is explained below.
When in rotational speed measurement mode, pulse is counted from count input of the high-speed counter, and the rotational 
speed for a specified amount of time is automatically calculated.
Set operation mode to rotational speed measurement mode by high-speed counter parameter setting.
Sets detailed settings for channel used.

Navigation window  [Parameter]  [FX5UCPU]  [Module Parameter]  [High Speed I/O]  “Input Function"  “High 
Speed Counter"  "Detail Setting"  “Basic Setting"

Window

Displayed items

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)

