Mitsubishi Electronics FX3G User Manual

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343
FX
3S
/FX
3G
/FX
3GC
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3U
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3UC
 Series
Programming Manual - Basic & Applied Instruction Edition
13 High-Speed Processing – FNC 50 to FNC 59
13.2 FNC 51 – REFF / Refresh and Filter Adjust
11
FN
C30
-FN
C3
9
R
ota
tion and 
Shi
ft
12
FN
C40-FN
C49
D
ata O
perati
on
13
FNC
50-FNC
59
High-Speed
 
Proc
essing
14
FM
C60-FN
C69
H
andy 
In
struction
15
FN
C70-FN
C79
E
xternal
 F
X
 I/O
 
De
vice
16
FNC
80-FNC
89
External
 FX 
Dev
ice
17
FNC1
00-
FNC10
9
Dat
Transfer 2
18
FNC1
10-
FNC139
Fl
oati
ng Poi
nt
19
FNC14
0-F
N
C
149
Da
ta
 
Operation 2
20
FNC1
50-
FNC159
Pos
itioning 
Control
13.2
FNC 51 – REFF / Refresh and Filter Adjust
Outline
The digital input filter time of the inputs X000 to X017 can be changed using this instruction or D8020.
Using this instruction, the status of inputs X000 to X017 can be refreshed at an arbitrary step in the program for the
specified input filter time, and then transferred to the image memory.
1. Instruction format
2. Set data
3. Applicable devices
S: K0 (H0) to K60 (H3C)
Explanation of function and operation
1. 16-bit operation (REFF and REFFP)
16 inputs from X000 to X017 in the image memory are refreshed at the digital input filter time [n 
× 1 ms].
• When the input turns ON "n 
× 1 ms" before the instruction is executed, the image memory is set to ON. When the 
input turns OFF "n 
× 1 ms" before the instruction is executed, the image memory is set to OFF.
• When the command input is ON, the REFF instruction is executed in each operation cycle.
• When the command input is OFF, the REFF instruction is not executed, and the input filter of X000 to X017 uses 
the set value of D8020 (which is the value used during input processing).
Operand Type
Description
Data Type
n
Digital input filter time [K0 to K60 (H0 to H3C) 
× 1 ms]
16-bit binary
Oper-
and 
Type
Bit Devices
Word Devices
Others
System User
Digit Specification
System User
Special 
Unit
Index
Con-
stant
Real 
Number
Charac-
ter String
Pointer
X Y M T C S D .b KnX KnY KnM KnS T C D R U \G
V Z Modify K H
E
" "
P
n
S S
P
FNC 51
REFF

Mnemonic
Operation Condition
16-bit Instruction
3 steps
REFF
REFFP
Mnemonic
Operation Condition
Continuous
Operation
Pulse (Single)
Operation
32-bit Instruction
FNC 51
REFF
n
K0 to K60 (Filter constant from 0 to 60 ms)
Command
input