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4.2.2 Output (Y)
The output (Y) is used to output control results on programs to external devices such as signal lamps, digital displays,
electromagnetic switches (contactors), or solenoids.
Data can be output to the outside like using a normally open contact.
(1) Allowable number of normally open or closed contacts
There are no restrictions on the number of normally open or closed contacts of Yn used in a program,
as long as the program capacity is not exceeded
.
(2) Using the output (Y) as the internal relay (M)
The output (Y) corresponding to the slots for input modules or empty slots can be utilized as the internal relay (M).
Signal lamp
Digital display
Contactor
Output (Y)
Sequence
operation
M51
Y22
Y21
Y20
Y20
X0
X1
Y20
Y20
X3
X2
Programmable
controller
No restrictions on the quantity used.
Program Output circuit (external device)
Load
Input module
OUT Yn
Equivalent to
internal relay
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