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4.
USER SCREEN MODE
Guide to Screen Objects
(12) SWITCH
Used to control the ONIOFF status of programmable controller bit devices or external outputs in
accordance with inputs from the FX-4ODU-E operation keys or from external sources. This object
offers two advantages; the FX-40DU-E operation keys can be used instead of pushbuttons,
selector switches, etc. on a control panel and the number of inputs to the programmable controller
can be reduced.
lnstruction source
External input: I 0 to
I7
(for wiring see page 13).
Controlled elements
Programmable controller bit devices: Y, M, S, T, C
External inputs: 0 0 to 0 7 (for wiring see page 13)
Output characteristics
MOMENTARY, ALTERNATE
Example
Instruction source:
key
[q
MOMENTARY
ALTERNATE
Controlled element: Y O
Operation:
key
[il
J L L
A L
3
1
I
Display format
These objects are not displayed in the USER SCREEN MODE; they serve for control purposes only.
Number of objects used
Maximum of 10 per screen.
Example of use
In the example shown here, a switch object is used in conjunction with a lamp object to provide
a means of confirming that switch control has been effective at the programmable controller.
TEXT
BOX
LAMP
7 - - - - - - - - - - 7
'
+
SWITCH
=
START
+
+
L
.-.-......
*
SWITCH
*
LAMP
Instruction source:
key [O]
Control device:
MO
Controlled element: M20
FX-40DU-E screen
Programmable controller program
M20
-
SWITCH input-
(1)
Press the [ 0
]
number
key.
(2) SWITCH input from FX-40DU-E
The switch object sends an
MZO
ON
- Y O output.
instruction to the programmable
(3) When YO comes
ON.
MO is caused to
controller.
come
ON.
FX-40DU-E screen
m
I
I
(4)
Display highlighted by LAMP
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Troubleshooting
