Mitsubishi FX3U-4AD User Manual page 134

FX /FX /FX PLC User's Manual - Analog Control Edition
3G 3U 3UC
FX -4AD/FX -4AD (4-channel Analog Input)
3U 3UC
• For FX , FX
3G
Initial pulse
M8002
FNC 79
TO P
RUN monitor
M8000
T0
FNC 79
TO
P
FNC 79
TO P
FNC 79
TO P
FNC 79
TO P
FNC 78
FROM
Clearance of upper/
lower limit error data
X000
FNC 79
TO P
Clearance of over-scale
data
X001
FNC 79
TO
RUN monitor
M8000
Error detection
M0
Setting error detection
M8
*1. After setting the input mode, set the data writing time (waiting time) to 5 seconds or more for each
setting.
After this, if the same input mode is used, it is not necessary to set the input mode and waiting time
(T0 K50) again.
*2. The set input mode, convenient functions, upper/lower limit error status data automatic transfer-to
data register number, over-scale status data automatic transfer-to data register number, and error
status data automatic transfer-to data register number are retained in the 4AD EEPROM. For this
reason, even if the sequence program is deleted, the previously set functions will still be valid.
B-58
, FX Series PLCs
3U 3UC
K0 K0 H3300
K50
T0
K0 K22 H01A2
K0 K126 K100
K0 K128 K101
K0 K129 K102
K0 K10
P
K0 K99 H0003
K0 K28
FNC 12
D100
MOV
FNC 12
D101
MOV
FNC 12
D102
MOV
Y020
Y021
Input modes of channels 1 to 4 will be
K1
specified.
*1
The convenient functions will be set.
K1
The upper/lower limit error status data automatic
K1
transfer-to data register will be set to D100.
The over-scale status data automatic transfer-to data
K1
register will be set to D101.
The error status data automatic transfer-to data register
K1
will be set to D102.
Reads the digital values of channels 1 to 4 from
D0 K4
BFM#10 to #13 into D0 to D3.
Clearance of upper/lower limit error data
K1
Clearance of over-scale data
K0 K1
The upper/lower limit error status data of each channel
K2Y000
will be output to Y000 to Y007.
The over-scale status data of each channel will be
K2Y010
output to Y010 to Y017.
K4M0
The error detection signal will be output to Y020.
The setting error detection signal will be output to Y021.
7 Examples of Practical Programs
7.2 Program That Uses Convenient Functions
*2
*2
*2
*2
*2