Changing Of Input Characteristics - Mitsubishi FX3U-4AD User Manual

FX /FX /FX PLC User's Manual - Analog Control Edition
3G 3U 3UC
FX -2AD-BD (2-channel analog Input)
3G
5.

Changing of Input Characteristics

The input characteristics can be changed using sequence programs in FX
5.1 Example: Changing of Voltage Input Characteristics
This section describes an example of a program that can change the digital output range of 400 to 2000
(when the voltage input is 1 to 5V) to the digital output range of 0 to 10000.
1. Input characteristics
2. Example of program
For example, create the following program to change the digital input data of the 1st analog board:
M8001
Normally OFF
M8000
Normally ON
M8002
Initial pulse
M8000
M8000
FNC 230
LD>=
M10
D-20
Voltage input characteristics
(product specifications)
4000
2000
400
0
1V 5V
Analog input
FNC 12
FNC 12
FNC 12
FNC 12
FNC 237
D110 K400
AND<=
FNC 21
SUB
FNC 22
MUL
FNC 23
DDIV
5.1 Example: Changing of Voltage Input Characteristics
Digital output value to be changed
Y-axis
10000
10V
0
Digital value actually obtained
by A/D conversion
M8260
D8268 K4M0
MOV
RST M6
RST M7
K4M0 D8268
MOV
K1 D8264
MOV
D8260 D110
MOV
D110 K2000 M10
D110 K400 D111
D111 K10000 D112
D112 K1600 D100
5 Changing of Input Characteristics
Series PLCs.
3G
X-axis
400(1V)
2000(5V)
Sets the input mode of channel 1 to the
voltage input mode (0V to 10V).
Error status : b6=OFF
Error status : b7=OFF
Sets the averaging scaling to "1" for
the channel-1 data.
Check to make sure the digital
value (D110) is in range.
Calculation for changing input
characteristics.
Stores the operation result in D100.