Mitsubishi Electronics MELSEC-F Manuel D’Utilisation

Page de 504
H-17
4 Programming
4.2 List of Special Devices
FX
3G
/FX
3U
/FX
3UC
 PLC User's Manual - Analog Control Edition
FX
3U
-3A-ADP (2-channel analog Input, 1-channel analog output)
A
Comm
on I
te
ms
B
FX
3U
-4AD
FX
3UC
-4
A
D
C
FX
3U
-4A
D
-A
D
P
D
FX
3G
-2A
D
-BD
E
FX
3U
-4DA
F
FX
3U
-4D
A
-AD
P
G
FX
3G
-1D
A
-BD
H
FX
3U
-3
A-
ADP
I
FX
3U
-4
A
D
-P
T
       
         
   -
A
D
P
J
FX
3U
-4A
D
-P
TW
     
        
      -
A
D
P
• FX
3G
 Series PLC
The analog special adapter nearest to the main unit is counted as the 1st analog special adapter, and the 
next adapter as the 2nd analog special adapter.In this case , however, do not include the connecter 
conversion adapter and the communication special adapter.
*1.
The second special adapter is not available in the 14-point and 24-point type FX
3G
 PLC main unit.
4.2
List of Special Devices
If the 3A-ADP is connected, special devices will be assigned automatically as shown in the following table:
• FX
3U
, FX
3UC
 Series PLC
R: Read / W: Write
Special device
Device number
Description
Attribute
Reference
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 output mode.
R/W
Section 4.4
M8263 M8273 M8283 M8293
Unused (Do not use.)
-
-
M8264 M8274 M8284 M8294
M8265 M8275 M8285 M8295
M8266 M8276 M8286 M8296 Sets the cancel of output holding function.
R/W
Section 4.5
M8267 M8277 M8287 M8297 Sets whether or not input channel 1 is used.
R/W
Section 4.6
M8268 M8278 M8288 M8298 Sets whether or not input channel 2 is used.
R/W
M8269 M8279 M8289 M8299 Sets whether or not output channel is used.
R/W
Special data 
register
D8260 D8270 D8280 D8290 Channel-1 input data
R
Section 4.7
D8261 D8271 D8281 D8291 Channel-2 input data
R
D8262 D8272 D8282 D8292 Output setting data
R/W
Section 4.8
D8263 D8273 D8283 D8293 Unused (Do not use.)
-
-
D8264 D8274 D8284 D8294
Averaging time for channel-1 (Setting range: 1 
to 4095)
R/W
Section 4.9
D8265 D8275 D8285 D8295
Averaging time for channel-2 (Setting range: 1 
to 4095)
R/W
D8266 D8276 D8286 D8296
Unused (Do not use.)
-
-
D8267 D8277 D8287 D8297
D8268 D8278 D8288 D8298 Error status
R/W
Section 4.10
D8269 D8279 D8289 D8299 Model code = 50
R
Section 4.11
Communi-
cation
special
adapter
Connector
conversion
adapter
A/D
or
D/A
A/D
or
D/A
FX
3U
-3A
-ADP
FX
3U
-3A
-ADP
2nd
*1
1st
FX
3G
 Series PLC
Sequence
program
Special devices
Special auxiliary relays:
M8280 to M8289
Special data registers:
D8280 to D8289.
Special auxiliary relays:
M8290 to M8299
Special data registers:
D8290 to D8299.