Mitsubishi Electric FX3G SERIES User Manual

371
FX3G/FX3U/FX3UC Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
13 High-Speed Processing – FNC 50 to FNC 59
13.7 FNC 56 – SPD / Speed Detection
11
FNC30-FNC39 Rotation and Shift
12
FNC40-FNC49 Data Operation
13
FNC50-FNC59 High-Speed Processing
14
FMC60-FNC69 Handy Instruction
15
FNC70-FNC79 External FX I/O Device
16
FNC80-FNC89 External FX Device
17
FNC100-FNC109 Data Transfer 2
18
FNC110-FNC139 Floating Point
19
FNC140-FNC149 Data Operation 2
20
FNC150-FNC159 Positioning Control
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
2. Set data
3. Applicable devices
S1: X000 to X007 can be specified.
S2: This function is supported only in FX
3U/FX3UC PLCs.
Operand Type Description Data Type
Device number of pulse input (X) Bit
Time data (ms) or word device number storing the data 16- or 32-bit binary
Head word device number storing the pulse density data 16- or 32-bit binary
Oper-
and
Type
Bit Devices Word Devices Others
System User Digit Specification System User
Special
Unit
Index Constant
Real
Number
Charac-
ter String
Pointer
XYMTCSD  .b KnX KnY KnM KnS T C D R U\G VZModify K H E "  "P
S1
3
33333333
S2
33 3 3 3
3333 33 3
Mnemonic Operation Condition
32-bit Instruction
13 steps DSPD
Continuous
Operation
7 steps SPD
Continuous
Operation
16-bit Instruction
Mnemonic Operation Condition
FNC 56
SPD
D
S 1
S 2
D
S 1
S 2
D

Mitsubishi Electric FX3G SERIES Specifications

General

Model	FX3G SERIES
Input Voltage	100-240 VAC or 24 VDC
Protection Class	IP20
Programming Language	Instruction List
Communication Ports	RS-422, RS-485, USB
Execution Speed	0.21 μs/basic instruction
High-speed Processing	Yes
Analog I/O	Optional (via expansion boards)
Expansion Modules	Yes
Operating Temperature	0°C to 55°C
Type	Programmable Logic Controller (PLC)