Fnc 56 - Spd / Speed Detection - Mitsubishi FX3G Series Programming Manual

FX /FX /FX /FX
3G 3U 3GC 3UC
Programming Manual - Basic & Applied Instruction Edition
13.7 FNC 56 – SPD / Speed Detection
Outline
This instruction counts the input pulse for a specified period of time as interrupt input.
The function of this instruction varies depending on the version.
1. Instruction format
FNC 56
D SPD
2. Set data
Operand Type
S
1
S
2
D
3. Applicable devices
Bit Devices
Oper-
and
Type
X Y
1
S
1
S
2
D
1: X000 to X007 can be specified.
2: This function is supported only in FX
364
Series
Mnemonic
16-bit Instruction
7 steps SPD
Device number of pulse input (X)
Time data (ms) or word device number storing the data
Head word device number storing the pulse density data
System User Digit Specification
M T C S D .b KnX KnY KnM KnS T C D R U \G
3U
13 High-Speed Processing – FNC 50 to FNC 59
Operation Condition
Continuous
Operation
Description
Word Devices
Special
System User
Unit
2
/FX PLCs.
3UC
13.7 FNC 56 – SPD / Speed Detection
Mnemonic
32-bit Instruction
13 steps DSPD
Real
Index Constant
Number
V Z Modify K H
Operation Condition
Continuous
Operation
Data Type
Bit
16- or 32-bit binary
16- or 32-bit binary
Others
Charac-
Pointer
ter String
E " " P