Setting Whether Or Not A Channel Is Used - Mitsubishi Electric MELSEC-FX3S Series Manual

FX /FX /FX /FX /FX
3S 3G 3GC 3U 3UC
FX -3A-ADP (2-channel Analog Input, 1-channel Analog Output)
3U
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 Series PLC
3S
Special auxiliary relay
M8287
M8288
M8289
• FX /FX Series PLC
3G 3GC
Special auxiliary relay
1st
M8287
M8288
M8289
• FX /FX Series PLCs
3U 3UC
1st
M8267
M8268
M8269
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.
1. Program Example (For FX
Set whether or not each channel is used in a sequence program.
1) To set that input channel 2 in the 1st unit
is not used:
M8000
Normally ON
PLC User's Manual - Analog Control Edition
Sets whether or not input
channel 1 is used.
Sets whether or not input
channel 2 is used.
Sets whether or not output
channel is used.
2nd
Sets whether or not input
M8297
channel 1 is used.
Sets whether or not input
M8298
channel 2 is used.
Sets whether or not output
M8299
channel is used.
Special auxiliary relay
2nd 3rd
M8277 M8287 M8297
M8278 M8288 M8298
M8279 M8289 M8299
/FX Series PLCs)
3U 3UC
M8268
4.6 Setting whether or not a channel is used
Description
OFF: Channel is used.
ON: Channel is not used.
Description
OFF: Channel is used.
ON: Channel is not used.
4th
Sets whether or not input
channel 1 is used.
Sets whether or not input
channel 2 is used.
Sets whether or not output
channel is used.
4 Programming
Description
OFF: Channel is used.
ON: Channel is not used.
H-23
A
B
C
D
E
F
G
H
I
J