Mitsubishi Electric MELSEC-Q00U(J)CPU

81
CHAPTER 2 APPLICATION OF PROGRAMMING
2
2.8 I/O Processing and Response Delay 2.8.2 Direct mode
(2) Response delay
An output response which corresponds to the status change in the input module delays for one scans (maximum)
depending on the on timing of an external contact.
[Example]
• DY5E turns on the earliest
• DY5E turns on the latest
Item Description
Execution of an input
contact instruction
The OR processing is performed with the input information of the input module (1)) and the input data of the
programming tool input area (2)) or remote input refresh area. The result is stored in the input (X) device memory
and is used as input data (3)) to execute the program.
Execution of an output
contact instruction
Output data in the output (Y) device memory (4)) are read out and the program is executed.
Execution of the OUT
instruction
The operation result of the program (5)) are output to the output module, and stored in the output (Y) device
memory.
55
DX5
DY5E
A program that turns on the output
DY5E when the input DX5 turns on.
Delay time
OFF
ON
05556
External contact
OFF
ON
OFF
ON
DX5
(External
contact)
DY5E
(External
load)
Devices in the
CPU module
OFF
ON
055 56
External contact
OFF
ON
OFF
ON
DX5
(External contact)
DY5E
(External load)
Delay time
( maximum 1 scan)
END 0
55 56
: Input refresh
: Output refresh
Devices in the
CPU module