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7 Changing Output Characteristic
7.1 Procedure for Changing Output Characteristics
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
FX
3G
/FX
3U
/FX
3UC
PLC User's Manual - Analog Control Edition
FX3U-4DA (4-channel Analog Output)
6 Create a sequence program.
To change the output characteristics, write the offset data (BFM #10 to #13) and the gain data
(BFM #14 to #17) in the sequence program, and then turn on the corresponding bit of BFM #9 for
the corresponding channel.
Example: Program for changing the output characteristics of channels 1 and 2 (For FX3U, FX3UC
Series PLCs):
7 Transfer the sequence program to change the output characteristics.
Transfer the sequence program, and start the PLC.
After the PLC is started and the output characteristic write command (X000) is turned on, the offset
data and gain data will be written.
Since the offset data and gain data are stored in the EEPROM incorporated in FX
3U-4DA, it is pos-
sible to delete the pre-written sequence program.
8 Check the analog output signals
Check that the output analog signals correspond to the set output data.
→ If analog signals are not correctly output, refer to Chapter 9 "Troubleshooting."
FNC 12
MOV
HFF00 U0\G0
P
SET M0
M0
T0
FNC 16
FMOV
K1000 U0\G10 K2
P
FNC 16
FMOV
K3000 U0\G14 K2
P
FNC 12
MOV
H0003 U0\G9
P
Output mode specification for
channels 1 to 4
Setting of offset data (channels 1 and 2)
K50
T0
FNC 12
MOV
K3030 U0\G19
P
X000
FNC 12
MOV
K0 U0\G19
P
Cancellation of setting change
prohibition mode
Setting of gain data (channels 1 and 2)
Offset/gain setting value write command
Setting change prohibition