Mitsubishi Electronics FX3G User Manual
413
FX
3S
/FX
3G
/FX
3GC
/FX
3U
/FX
3UC
Series
Programming Manual - Basic & Applied Instruction Edition
14 Handy Instruction – FNC 60 to FNC 69
14.8 FNC 67 – RAMP / Ramp Variable Value
11
FN
C30
-FN
C3
C30
-FN
C3
9
R
ota
tion and
Shi
ft
ft
12
FN
C40-FN
C40-FN
C49
D
ata O
perati
perati
on
13
FNC
50-FNC
59
High-Speed
Proc
essing
14
FM
C60-FN
C60-FN
C69
H
andy
In
struction
15
FN
C70-FN
C70-FN
C79
E
xternal
F
X
I/O
De
vice
16
FNC
80-FNC
89
External
FX
Dev
ice
ice
17
FNC1
00-
FNC10
00-
FNC10
9
Dat
a
a
Transfer 2
18
FNC1
10-
FNC139
FNC139
Fl
oati
ng Poi
nt
19
FNC14
0-F
N
C
149
Da
ta
Operation 2
20
FNC1
50-
FNC159
FNC159
Pos
itioning
itioning
Control
14.8
FNC 67 – RAMP / Ramp Variable Value
Outline
This instruction obtains the data which changes between the start value (initial value) and the end value (target value)
over the specified "n" times.
over the specified "n" times.
1. Instruction format
2. Set data
3. Applicable devices
S: This function is supported only in FX
3G
/FX
3GC
/FX
3U
/FX
3UC
PLCs.
Explanation of function and operation
1. 16-bit operation (RAMP)
When the start value
and the end value
have been specified and the command input is set to ON, the
value obtained by adding a value divided equally by "n" times to
in every operation cycle is stored to
.
By combining this instruction and an analog output, the cushion start/stop command can be output.
• The number of scans ("0" to "n") is stored in
+1.
• The time from start to the end value is the operation cycle multiplied by "n" times.
• If the command input is set to OFF in the middle of operation, execution is paused. (The present data value stored
• If the command input is set to OFF in the middle of operation, execution is paused. (The present data value stored
in
is held, and the number of scans stored in
+1 is cleared.) When the command input is set to ON
again,
is cleared, and the operation is started from
.
Operand type
Description
Data type
Device number storing the initial value of ramp
16-bit binary
Device number storing the target value of ramp
16-bit binary
Device number storing the current value of ramp
16-bit binary
n
Ramp transfer time (scan) [1 to 32, 767]
16-bit binary
Oper-
and
Type
Bit Devices
Word Devices
Others
System User
Digit Specification
System User
Special
Unit
Index
Con-
stant
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
S
S
S
n
S
FNC 67
RAMP
−
Mnemonic
Operation Condition
16-bit Instruction
9 steps RAMP
Mnemonic
Operation Condition
Continuous
Operation
32-bit Instruction
S
1
S
1
S
2
D
S
1
S
1
S
2
S
2
D
D
1
S
1
D
1
S
2
D
1
S
1
D
1
D
Command
input
FNC 67
RAMP
n
S
1
S
2
D
Number of scans +1
1) In the case of " < "
"n" scans
2) In the case of " > "
S
1
S
1
S
1
S
1
S
2
D
S
2
D
S
2
S
2
"n" scans
D
Number of scans +1
D
D
1
D
D
1
D
D
1
D
D
1
D
D
1
S
1