Mitsubishi Electric MELSEC FX3U Programming Manual page 714

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
Setting the conversion setting data table for scaling
Set item
Number of coordinate points
X coordinate
Point 1
Y coordinate
X coordinate
Point 2
Y coordinate
X coordinate
Point 3
Y coordinate
X coordinate
Point 4
Y coordinate
X coordinate
Point 5
Y coordinate
X coordinate
Point 6
Y coordinate
X coordinate
Point 7
Y coordinate
X coordinate
Point 8
Y coordinate
X coordinate
Point 9
Y coordinate
X coordinate
Point 10
Y coordinate
Errors
An operation error is caused in the following cases; The error flag M8067 turns ON, and the error code is
stored in D8067.
• When the Xn data is not set in the ascending order in the data table (error code: K6706)
The data table is searched from the low-order side of device numbers in the data table in the operation.
Accordingly, even if only some Xn data is set in the ascending order in the data table, the instruction is
executed without operation error up to the area of the data table in which the Xn data is set in the
ascending order.
• When
S
1
• When the value exceeds the 32-bit data range in the middle of operation (error code: K6706)
In this case, check whether the distance between points is not "65535" or more.
If the distance is "65535" or more, reduce the distance between points.
712
Setting device and setting contents
When R0 is specified
in S
2
S
2
S +1
2
S +2
2
+3
S
2
+4
S
2
S +5
2
+6
S
2
S +7
2
S +8
2
+9
S
2
S +10
2
S +11
2
+12
S
2
S +13
2
+14
S
2
+15
S
2
S +16
2
+17
S
2
S +18
2
S +19
2
+20
S
2
is outside the data table (error code: K6706)
29 Data Table Operation – FNC250 to FNC269
29.4 FNC259 – SCL / Scaling (Coordinate by Point Data)
Setting
contents
R0 K10
R1 K5
R2 K7
R3 K20
R4 K30
R5 K50
R6 K100
R7 K200
When coordinates are specified using three points
R8 K25
in this way, the output value can be set to an
intermediate value.
R9 K200
In this example, the output value (intermediate
R10 K70
value) is specified by the Y coordinate of the point 5.
If the X coordinate is the same at three points or
R11 K200
more, the value at the second point is also output.
R12 K250
R13 K250
R14 K90
R15 K350
When coordinates are specified using two points in
this way, the output value is the Y coordinate at the
R16 K90
next point.
R17 K350
In this example, the output value is specified by the
Y coordinate of the point 9.
R18 K30
R19 K400
R20 K7
Remarks