Mitsubishi MELSEC-F FX3U Series User Manual

C-15
4 Programming
4.2 List of Special Devices
FX 3U /FX 3UC Series PLC User's Manual - Analog Control Edition
FX3U-4AD-ADP (4-channel analog Input)
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)
4.2 List of Special Devices
If 4AD-ADP is connected, special devices will be assigned as shown in the following table:
R: Read / W: Write
4.3 Switching of Input Mode
Turn on/off the special auxiliary relay to switch the input mode of 4AD-ADP between the current input mode
and the voltage input mode.
To switch the input mode, use the following special auxiliary relays:
1. Example of program
To switch the input mode of a channel, create a sequence program as follows:
Special
device
Device number
Description Attribute
Refer-
ence
1st 2nd 3rd 4th
Special
auxiliary
relay
M8260 M8270 M8280 M8290 Switches the input mode of channel 1 R/W
Section
4.3
M8261 M8271 M8281 M8291 Switches the input mode of channel 2 R/W
M8262 M8272 M8282 M8292 Switches the input mode of channel 3 R/W
M8263 M8273 M8283 M8293 Switches the input mode of channel 4 R/W
M8264 to
M8269
M8274 to
M8279
M8284 to
M8289
M8294 to
M8299
Unused (Do not use.) - -
Special
data
register
D8260 D8270 D8280 D8290 Channel-1 input data R
Section
4.4
D8261 D8271 D8281 D8291 Channel-2 input data R
D8262 D8272 D8282 D8292 Channel-3 input data R
D8263 D8273 D8283 D8293 Channel-4 input data R
D8264 D8274 D8284 D8294
Number of averaging time for
channel-1 (Setting range: 1 to 4095)
R/W
Section
4.5
D8265 D8275 D8285 D8295
Number of averaging time for
channel-2 (Setting range: 1 to 4095)
R/W
D8266 D8276 D8286 D8296
Number of averaging time for
channel-3 (Setting range: 1 to 4095)
R/W
D8267 D8277 D8287 D8297
Number of averaging time for
channel-4 (Setting range: 1 to 4095)
R/W
D8268 D8278 D8288 D8298 Error status R/W
Section
4.6
D8269 D8279 D8289 D8299 Model code = 1 R
Section
4.7
Special auxiliary relay
Description
1st 2nd 3rd 4th
M8260 M8270 M8280 M8290 Switches the input mode of channel 1
OFF: Voltage input
ON: Current input
M8261 M8271 M8281 M8291 Switches the input mode of channel 2
M8262 M8272 M8282 M8292 Switches the input mode of channel 3
M8263 M8273 M8283 M8293 Switches the input mode of channel 4
1) To switch the input mode of channel
1 of the 1st analog special adapter to the
voltage input mode:
M8001
M8260
Normally OFF
2) To switch the input mode of channel 2
of the 1st analog special adapter to
the current input mode:
M8000
M8261
Normally ON

Mitsubishi MELSEC-F FX3U Series Specifications

General

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