Mitsubishi Electronics MELSEC-F Manuel D’Utilisation
H-20
4 Programming
4.6 Setting whether or not a channel is used
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)
4.6
Setting whether or not a channel is used
The 3A-ADP sets to ON or OFF special auxiliary relays to set whether or not each channel is used.
This setting can be used to disable or enable the input or output channels of the 3A-ADP.
• FX
This setting can be used to disable or enable the input or output channels of the 3A-ADP.
• FX
3U
, FX
3UC
Series PLCs
• FX
3G
Series PLC
POINT
When the setting whether or not the output channel is used is changed from "Used (OFF)" to "Not used (ON)",
the last output before the change is held.
When the setting whether or not the output channel is used is changed from "Used (OFF)" to "Not used (ON)",
the last output before the change is held.
1. Program Example (For FX
3U
, FX
3UC
Series PLCs)
Set whether or not each channel is used in a sequence program.
Special auxiliary relay
Description
1st
2nd
3rd
4th
M8267
M8277
M8287
M8297
Sets whether or not input channel
1 is used.
1 is used.
OFF: Channel is used.
ON: Channel is not used.
ON: Channel is not used.
M8268
M8278
M8288
M8298
Sets whether or not input channel
2 is used.
2 is used.
M8269
M8279
M8289
M8299
Sets whether or not output channel
is used.
is used.
Special auxiliary relay
Description
1st
2nd
M8287
M8297
Sets whether or not input channel
1 is used.
1 is used.
OFF: Channel is used.
ON: Channel is not used.
ON: Channel is not used.
M8288
M8298
Sets whether or not input channel
2 is used.
2 is used.
M8289
M8299
Sets whether or not output channel
is used.
is used.
1) To set that input channel 2 in the 1st unit
is not used:
is not used:
M8001
M8268
Normally OFF