Input Data - Mitsubishi Electric FX3G User Manual

FX /FX /FX /FX /FX
3S 3G 3GC 3U
FX -3A-ADP (2-channel Analog Input, 1-channel Analog Output)
3U
4.7

Input Data

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 Series PLC
3S
Special data register
D8280
D8281
• FX /FX
3G 3GC
Special data register
1st
D8280
D8281
• FX /FX
3U 3UC
1st
D8260
D8261
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.
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 FX
M8000
Normally
ON
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.
H-24
PLC User's Manual - Analog Control Edition
3UC
Stores the channel-1 input data
Stores the channel-2 input data
Series PLC
2nd
D8290 Stores the channel-1 input data
D8291 Stores the channel-2 input data
Series PLC
Special data register
2nd 3rd
D8270 D8280
D8271 D8281
→ For a detailed description of the averaging time, refer to Section 4.9.
/FX
3U 3UC
FNC 12
D8260
MOV
FNC 12
D8261
MOV
Description
Description
4th
D8290 Stores the channel-1 input data
D8291 Stores the channel-2 input data
Series PLC)
Stores the channel-1 input data
D100 of the 1st analog special adapter
in the D100.
Stores the channel-2 input data
of the 1st analog special adapter
D101
in the D101.
4 Programming
4.7 Input Data
Numeric data type: Decimal (K)
Description