Mitsubishi FX3U-4AD User Manual page 96

FX /FX /FX PLC User's Manual - Analog Control Edition
3G 3U 3UC
FX -4AD/FX -4AD (4-channel Analog Input)
3U 3UC
3
Creation of sequence program
Create the program as follows to read analog signals.
• While referring to step 2, set the input mode "H****".
• While referring to step 1, set the unit number in
- Program Example (For FX
Initial pulse
M8002
RUN monitor
M8000
T0
*1. Use the FROM and TO instructions in FX
4
Sequence program transfer and data register check
1) Transfer the sequence program, and start the PLC.
2) The 4AD analog data input mode will be stored in data registers (D0 to D3) of the PLC.
3) Check that the data is stored in D0 to D3.
B-20
, FX Series PLCs)
3U 3UC
FNC 12
H****
MOV P
T0
FNC 15
U \G10 D0
BMOV
Unit number (step 1)
3G
→ If the data is not properly stored, refer to Chapter 8 "Troubleshooting."
*1
Input mode (step 2)
Unit number (step 1)
Specify the input mode (BFM #0) for channels
U \GO
1 to 4.
K50
5 seconds after starting the PLC, the digital
values of channels 1 to 4 (BFM #10 to #13) will
K4
be read out to D0 to D3.
PLCs.
4 Analog Input
4.1 Analog Input Procedures