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4 Programming
4.7 Input Data
FX
3G
/FX
3U
/FX
3UC
PLC User's Manual - Analog Control Edition
FX
3U
-3A-ADP (2-channel analog Input, 1-channel analog output)
A
Common Items
B
FX
3U
-4AD
FX
3UC
-4AD
C
FX
3U
-4AD-ADP
D
FX
3G
-2AD-BD
E
FX
3U
-4DA
F
FX
3U
-4DA-ADP
G
FX
3G
-1DA-BD
H
FX
3U
-3A-ADP
I
FX
3U
-4AD-PT
-ADP
J
FX
3U
-4AD-PTW
-ADP
4.7 Input Data
Numeric data type: Decimal (K)
The data converted by the 3A-ADP will be stored in the special data registers.
The special data registers that store the input data are shown in the following table:
•FX
3U, FX3UC Series PLC
•FX
3G Series PLC
The converted A/D immediate data or averaged data (data average conforming to the specified averaging
time) will be stored in the above data registers as the input data.
When the channel is not used, "0" will be stored.
→ For a detailed description of the averaging time, refer to Section 4.9.
1. Caution regarding input data
Input data is for reading only.
Do not change (rewrite) the input data using sequence program, indicator, or device monitor of the
programming tool.
2. Program Example (For FX3U, FX3UC Series PLC)
Even if the input data is not stored in D100 or D101, data registers D8260 or D8261 can be directly used in
the timer/counter set value or in a PID instruction.
Special auxiliary relay
Description
1st 2nd 3rd 4th
D8260 D8270 D8280 D8290 Stores the channel-1 input data
D8261 D8271 D8281 D8291 Stores the channel-2 input data
Special auxiliary relay
Description
1st 2nd
D8280 D8290 Stores the channel-1 input data
D8281 D8291 Stores the channel-2 input data
M8000
Normally
ON
FNC 12
MOV
D8260 D100
FNC 12
MOV
D8261 D101
Stores the channel-1 input data
of the 1st analog special adapter
Stores the channel-2 input data
of the 1st analog special adapter
in the D100.
in the D101