Mitsubishi MELSEC-F FX3U Series User Manual

D-17
4 Programming
4.4 Output Holding Function Cancellation Setting
FX 3U /FX 3UC Series PLC User's Manual - Analog Control Edition
FX3U-4DA-ADP (4-channel analog Output)
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)
4.4 Output Holding Function Cancellation Setting
This setting can select the setting to hold the analog data output or to output the offset data (0V for voltage
output mode, 4mA for current output mode) at stoppage of the PLC.
To cancel or set the output holding function, use the following special auxiliary relays:
1. Example of program
To set or cancel the output holding function for a channel, create a sequence program as follows:
4.5 Output Setting Data
Numeric data type: Decimal (K)
4DA-ADP 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:
1. Example of program
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
1st 2nd 3rd 4th
M8264 M8274 M8284 M8294
Output holding function cancellation
setting for channel 1
OFF: Holds the analog data output
just before stop of the PLC.
ON : Outputs the offset data at
stop of the PLC.
M8265 M8275 M8285 M8295
Output holding function cancellation
setting for channel 2
M8266 M8276 M8286 M8296
Output holding function cancellation
setting for channel 3
M8267 M8277 M8287 M8297
Output holding function cancellation
setting for channel 4
Special data register
Description
1st 2nd 3rd 4th
D8260 D8270 D8280 D8290 Channel-1 output setting data
D8261 D8271 D8281 D8291 Channel-2 output setting data
D8262 D8272 D8282 D8292 Channel-3 output setting data
D8263 D8273 D8283 D8293 Channel-4 output setting data
1) To set the output holding function for
channel 1 of the 1st analog special adapter:
M8001
M8264
Normally OFF
2) To cancel the output holding function for
channel 2 of the 1st analog special adapter:
M8000
M8265
Normally ON
M8000
Normally ON
FNC 12
MOV
D100 D8260
FNC 12
MOV
D101 D8261
Performs D/A conversion using the digital
data stored in the D100 for channel 1 of
the 1st analog special adapter.
Performs D/A conversion using the digital
data stored in the D101 for channel 2 of
the 1st analog special adapter.

Mitsubishi MELSEC-F FX3U Series Specifications

General

Brand	Mitsubishi
Model	MELSEC-F FX3U Series
Category	Controller
Language	English