Mitsubishi Electronics MELSEC-F Manuel D’Utilisation
G-14
4 Programming
4.2 List of Special Devices
FX
3G
/FX
3U
/FX
3UC
PLC User's Manual - Analog Control Edition
FX
3G
-1DA-BD (1-channel analog Output)
4.2
List of Special Devices
If 1DA-BD is connected, special devices will be assigned automatically as shown in the following table:
R: Read / W: Write
4.3
Switching of Output Mode
Turn the special auxiliary relay on/off to switch the output mode of 1DA-BD between the current output mode
and the voltage output mode.
To switch the output mode, use the following special auxiliary relays:
and the voltage output mode.
To switch the output mode, use the following special auxiliary relays:
1. Program Example
To switch the output mode, create a sequence program as follows:
Special
device
Device number
Description
Attribute Reference
1st
board
2nd
board
Special
auxiliary
relay
M8260
M8270
Switches the output mode.
R/W
Section
4.3
M8261 to
M8263
M8271 to
M8273
Unused (Do not use.)
-
-
M8264
M8274
Sets the cancel of output holding
function.
function.
R/W
Section
4.4
M8265 to
M8269
M8275 to
M8279
Unused (Do not use.)
-
-
Special
data
register
D8260
D8270
Output setting data
R/W
Section
4.5
D8261 to
D8267
D8271 to
D8277
Unused (Do not use.)
-
-
D8268
D8278
Error status
R/W
Section
4.6
D8269
D8279
Model code = 4
R
Section
4.7
Special auxiliary relay
Description
1st board
2nd board
M8260
M8270
Switches the output mode.
OFF:Voltage output
ON :Current output
ON :Current output
To switch the channel output mode of the
1st analog board to the voltage output mode:
1st analog board to the voltage output mode:
M8001
M8260
Normally OFF