Model Code - 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
4.7

Model Code

When the 2AD-BD is connected, model code "3" is stored in the corresponding special data register.
The following table shows the special data registers that store the model code:
Special data register
1st board 2nd board
D8269
Use the special data registers above to check whether a 2AD-BD is connected or not.
1. Program Example
FNC224
LD =
4.8 Basic Program Example
Create the following basic program example to read out analog conversion (A/D conversion) data.
The following program will set the 1st board to voltage input mode and channel 2 to current input mode, and
will store the converted A/D value of channel-1 data into D100 and that of channel-2 data into D101.
M8001
Normally
OFF
M8000
Normally
ON
M8000
M8002
Initial
pulse
M8000
M8000
Even if the input data is not stored into D100 or D101, the data registers D8260 or D8261 can be directly used
in the timer/counter setting value or in a PID instruction.
D8279 Model code
D8269 K3
FNC 12
D8268
MOV
RST
RST
FNC 12
K4M0
MOV
FNC 12
K5
MOV
FNC 12
K5
MOV
FNC 12
D8260
MOV
FNC 12
D8261
MOV
Description
Checks the model code of the 1st
Y007
analog board
Sets the input mode of the 1st board
M8260
to the voltage input mode
(0 V to 10 V).
Sets the input mode of the 2nd board
M8261
to the current input mode
(4 mA to 20 mA).
K4M0
M6 Error status: b6 = OFF
M7 Error status: b7 = OFF
D8268
Sets the averaging time to "5"
D8264
for channel-1 data.
Sets the averaging time to "5"
D8265
for channel-2 data.
Stores the A/D converted
D100
channel-1 digital data into D100.
Stores the A/D converted
D101
channel-2 digital data into D101.
4 Programming
4.7 Model Code
Initial value: K3
Numeric data type: Decimal (K)
D-19
A
B
C
D
E
F
G
H
I
J