Output Holding Function Cancellation Setting; Output Setting Data - Mitsubishi MELSEC-F FX3U Series User Manual

FX /FX Series PLC User's Manual - Analog Control Edition
3U 3UC
FX -4DA-ADP (4-channel analog Output)
3U
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:
Special auxiliary relay
1st 2nd
M8264 M8274
M8265 M8275
M8266 M8276
M8267 M8277
1. Example of program
To set or cancel the output holding function for a channel, create a sequence program as follows:
1) To set the output holding function for
channel 1 of the 1st analog special adapter:
M8001
Normally OFF
4.5

Output Setting Data

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:
Special data register
1st 2nd
D8260 D8270
D8261 D8271
D8262 D8272
D8263 D8273
1. Example of program
M8000
Normally ON
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.
3rd 4th
Output holding function cancellation
M8284 M8294
setting for channel 1
Output holding function cancellation
M8285 M8295
setting for channel 2
Output holding function cancellation
M8286 M8296
setting for channel 3
Output holding function cancellation
M8287 M8297
setting for channel 4
2) To cancel the output holding function for
M8264
3rd 4th
D8280 D8290 Channel-1 output setting data
D8281 D8291 Channel-2 output setting data
D8282 D8292 Channel-3 output setting data
D8283 D8293 Channel-4 output setting data
FNC 12
D100 D8260
MOV
FNC 12
D101 D8261
MOV
4.4 Output Holding Function Cancellation Setting
Description
OFF: Holds the analog data output
ON : Outputs the offset data at
channel 2 of the 1st analog special adapter:
M8000
Normally ON
Numeric data type: Decimal (K)
Description
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.
4 Programming
just before stop of the PLC.
stop of the PLC.
M8265
D-17
A
B
C
D
E
F
G