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G-18
5 Changing of Output Characteristics
5.1 Example: Changing of Voltage Output Characteristics
FX
3G
/FX
3U
/FX
3UC
PLC User's Manual - Analog Control Edition
FX3G-1DA-BD (1-channel analog Output)
5. Changing of Output Characteristics
The output characteristics can be changed using sequence programs in FX3G Series PLCs.
5.1 Example: Changing of Voltage Output Characteristics
This section describes an example of a program that can change the digital value range from 400 to 2000
(when analog output range is 1 to 5V) to 0 to 10000.
A specified digital value is inputted into D100.
1. Output characteristics
2. Example of program
For example, create the following program to change the digital output data (D100) of the 1st analog board.
0
10000
Specified digital output
value to be actually
subject to D/A conversion
2000
(5V)
400
(1V)
Desired digital value (D100)
Voltage output characteristics
(product specifications)
Digital value characteristics
to be changed
X-axis
0
4000
10V
Analog output
Digital value input
400 2000
5V
1V
Y-axis
D103 K400 D107
FNC 20
ADD
D101 K10000 D103
FNC 23
DDIV
D100 K1600 D101
FNC 22
MUL
M10
M8001
M8260
FNC 12
MOV
D107 D8260
M8264
M10
FNC 230
LD>=
D100 K0
FNC 237
AND<=
D100 K10000
Normally
OFF
Sets the output mode of 1st board
to the voltage output mode (0V to 10V).
Sets the output mode to the
output holding mode.
Check to make sure the digital
value (D100) is in range.
Calculation for changing output
characteristics.
Stores the operation result in D8260.