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19 BUILT-IN I/O FUNCTION
19.2 FX3-compatible high-speed counter function
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FX3-compatible high-speed counter setting
This section describes the setting of the case when the FX3 compatible high-speed counter is used.
FX3-compatible high-speed counter are set by GX Works3.
• If a high-speed comparison table or a multi-point output high-speed comparison table is used, it is
necessary to set the parameter in the same manner as the FX5 high-speed counter.
• It is necessary to specify also the input response time.
Parameter setting
FX3-compatible high-speed counter parameter setting method is explained below.
For parameter setting of each operation, refer to the following.
• For FX3-compatible high-speed counters, refer to Page 169 FX3-compatible high-speed counter.
• For high-speed comparison table, refer to Page 132 High-speed comparison table.
• For multiple point output, high-speed comparison tables, refer to Page 134 Multiple point output, high-speed
comparison tables.
• For input response time, refer to Page 191 General-purpose Input Functions.
FX3-compatible high-speed counter
FX3 compatible high-speed counter setting method is explained below.
1. Set the method of specifying the high-speed counter to "long counter setting".
Navigation window [Parameter] [FX5UCPU] [Module Parameter] [High Speed I/O] “Input Function" “High
Speed Counter" "Detail Setting" “Other"
Window
Displayed items
2. Set up the FX3 compatible high-speed counter.
The counter number and function that can be specified are different from CH to CH. (Page 167 Assignment for FX3-
compatible high-speed counters)
Navigation window [Parameter] [FX5UCPU] [Module Parameter] [High Speed I/O] “Input Function" “High
Speed Counter" "Detail Setting" “Basic Settings"
Item Description Setting range Default
Specification method for high speed
counter
Set up whether or not to use FX3 compatibility assignment for
high speed counter.
• When using FX5 high-speed counter, choose "normal".
• When using FX3 compatible high-speed counter, choose
"long counter specification".
• Normal
• Long Counter Specification
Normal