9
DEVICE EXPLANATION
9.2 Internal User Devices
9.2.2 Output (Y)
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9.2.2 Output (Y)
(1) Definition
Outputs give out the program control results to the external devices such as solenoid,
electromagnetic switch, signal lamp and digital display.
Outputs give out the result equivalent to one N/O contact.
(2) Number of used N/O and N/C contacts
There are no restrictions on the number of output Yn N/O contacts and N/C contacts
used in a program, provided the program capacity is not exceeded.
(3) Using outputs as internal relays (M)
An output (Y) corresponding to a region with no module mounted can be used in place
of an internal relay (M).
Diagram 9.6 Output from CPU module to external devices
Diagram 9.7 Use of output (Y) in program
Diagram 9.8 Substitute for internal relay
Signal lamp
Digital display
Contact
Output (Y)
Sequence
operation
M51
Y102
Y101
Y100
Y100
X100
X102
Y100
Y100
X106
X104
No restrictions on the quantity used.
Out ladder (external device)
Program
Load
Programmable
logic controller
Programmabe
controller
OUT Yn
Eguivalent to internal relay
Empty slots
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