Mitsubishi Electric MELSEC-FX3S Series - Page 329

G-17
4 Programming
4.4 Output Holding Function Cancellation Setting
FX 3S /FX 3G /FX 3GC /FX 3U /FX 3UC PLC User's Manual - Analog Control Edition
FX3G-1DA-BD (1-channel Analog Output)
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
4.4 Output Holding Function Cancellation Setting
This setting can hold the analog data output or to output the offset data (0 V for voltage output mode, 4 mA for
current output mode) when the PLC stops.
To cancel or set the output holding function, use the following special auxiliary relays:
•FX
3S Series PLC
•FX
3G Series PLC
1. Program Example (For FX3G Series PLC)
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:
•FX
3S Series PLC
•FX
3G Series PLC
1. Program Example (For FX3G Series PLC)
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.
Special auxiliary relay Description
M8264
Cancel output holding function
setting.
OFF: Holds the analog data output just before
stop of the PLC.
ON : Outputs the offset data at stop of the PLC.
Special auxiliary relay
Description
Board A Board B
M8264 M8274
Cancel output holding function
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
D8260 Output setting data
Special data register
Description
Board A Board B
D8260 D8270 Output setting data
To set the output holding function
for the board A:
M8001
M8264
Normally OFF
M8000
Normally ON
D100 D8260
D101 D8270
Performs D/A conversion using the digital
data stored in the D100 for the board A.
Performs D/A conversion using the digital
data stored in the D101 for the board B.
FNC 12
MOV
FNC 12
MOV