List Of Special Devices; Error Status; Model Code = 3 - Mitsubishi FX3U-4AD User Manual

FX /FX /FX PLC User's Manual - Analog Control Edition
3G 3U 3UC
FX -2AD-BD (2-channel analog Input)
3G
4.2

List of Special Devices

If the 2AD-BD is connected, special devices will be assigned automatically as shown in the following table:
Special device
Special auxiliary relay
Special data register
4.3 Switching of Input Mode
Turn the special auxiliary relay on/off to switch the input mode of 2AD-BD between the current input mode
and the voltage input mode.
To switch the input mode, use the following special auxiliary relays:
Special auxiliary relay
1st board 2nd board
M8260
M8261
1. Program Example
To switch the channel input mode, create a sequence program as follows:
1) To switch the input mode of channel
1 of the 1st analog board to the voltage
input mode:
M8001
Normally OFF
D-14
Device number
1st board 2nd board
M8260 M8270
M8261 M8271
M8262 to M8272 to
M8269 M8279
D8260 D8270
D8261 D8271
D8262 D8272
D8263 D8273
D8264 D8274
D8265 D8275
D8266 D8276
D8267 D8277
D8268 D8278
D8269 D8279
M8270 Switches the input mode of channel 1 OFF: Voltage input
M8271 Switches the input mode of channel 2
M8260
Description
Switches the input mode of channel 1
Switches the input mode of channel 2
Unused (Do not use.)
Channel-1 input data
Channel-2 input data
Unused (Do not use.)
Averaging time for channel-1 (Setting
range: 1 to 4095)
Averaging time for channel-2 (Setting
range: 1 to 4095)
Unused (Do not use.)

Error status

Model code = 3

Description
ON: Current input
2) To switch the input mode of channel 2
of the 1st analog board to the current
input mode:
M8000
Normally ON
4 Programming
4.2 List of Special Devices
R: Read / W: Write
Attribute Reference
R/W
Section 4.3
R/W
- -
R
Section 4.4
R
- -
R/W
Section 4.5
R/W
- -
R/W Section 4.6
R Section 4.7
M8261