B-17
4 Analog Data Reading
4.1 Procedure for Reading Out of Analog Data
A
Common Items
B
FX
3UC
-4AD
C
FX
3U
-4AD-ADP
D
FX
3U
-4DA-ADP
E
FX
3U
-4AD-PT
-ADP
F
FX
3U
-4AD-TC
-ADP
G
PID Instruction
(FNC 88)
FX
3U
/FX
3UC
Series PLC User's Manual - Analog Control Edition
FX3UC-4AD (4-channel Analog Input)
3 Preparation of sequence program
Create the program as follows to read out analog data.
• While referring to step 2, set the input mode "H****".
• While referring to step 1, set the unit number in
4 Sequence program transfer and data register check
1) Transfer the sequence program, and start the PLC.
2) The analog data input to 4AD will be stored in the data registers (D0 to D3) of the PLC.
3) Check that the data is stored in D0 to D3.
→ If the data is not properly stored, refer to Chapter 8 "Troubleshooting."
M8002
FNC 12
MOV
H**** U
\GO
P
M8000
K50
T0
T0
Specify the input mode (BFM #0) for channels
1 to 4.
Initial pulse
FNC 16
BMOV
U
\G10 D0 K4
5 seconds after starting the PLC, the digital
values of channels 1 to 4 (BFM #10 through
#13) will be read out to D0 to D3.
Input mode (step 2)
Unit number (step 1)
Unit number (step 1)
RUN monitor
To Next Page
Loading...
Need help?
General
