Mitsubishi Electronics MELSEC-F Manuel D’Utilisation
G-15
4 Programming
4.4 Output Holding Function Cancellation Setting
FX
3G
/FX
3U
/FX
3UC
PLC User's Manual - Analog Control Edition
FX
3G
-1DA-BD (1-channel analog Output)
A
Comm
on I
te
te
ms
B
FX
3U
-4AD
FX
3UC
-4
A
D
C
FX
3U
-4A
D
D
-A
D
P
D
FX
3G
-2A
D
D
-BD
E
FX
3U
-4DA
F
FX
3U
-4D
A
A
-AD
P
P
G
FX
3G
-1D
A
A
-BD
H
FX
3U
-3
A-
ADP
I
FX
3U
-4
A
D
-P
T
-
A
D
P
J
FX
3U
-4A
D
D
-P
TW
-
A
A
D
P
4.4
Output Holding Function Cancellation Setting
This setting can hold the analog data output or to output the offset data (0V for voltage output mode, 4mA for
current output mode) when the PLC stops.
To cancel or set the output holding function, use the following special auxiliary relays:
current output mode) when the PLC stops.
To cancel or set the output holding function, use the following special auxiliary relays:
1. Program Example
To set or cancel the output holding function, create a sequence program as follows:
4.5
Output Setting Data
Numeric data type: Decimal (K)
The 1DA-BD performs D/A conversion on the output setting data (digital data) into analog data, and outputs
the analog data.
Use the special data registers shown in the following table for the output setting data:
the analog data.
Use the special data registers shown in the following table for the output setting data:
1. Program Example
Using the indicator or the sequence program, input the digital data to be subject to D/A conversion (to be
output as analog data) in D100 and D101.
output as analog data) in D100 and D101.
Special auxiliary relay
Description
1st board
2nd board
M8264
M8274
Cancel output holding function
setting.
setting.
OFF: Holds the analog data output
just before stop of the PLC.
ON : Outputs the offset data at
stop of the PLC.
Special data register
Description
1st board 2nd board
D8260
D8270
Output setting data
To set the output holding function
for the 1st analog board:
M8001
M8264
Normally OFF
M8000
Normally ON
FNC 12
MOV
D100
D8260
FNC 12
MOV
D101
D8270
Performs D/A conversion using the digital
data stored in the D100 for the 1st analog
board.
data stored in the D100 for the 1st analog
board.
Performs D/A conversion using the digital
data stored in the D101 for the 2nd analog
board.
data stored in the D101 for the 2nd analog
board.