Mitsubishi Q00JCPU User Manual page 172

3
SEQUENCE PROGRAM CONFIGURATION AND
EXECUTION CONDITIONS
(3) Output
3
- 74 3.8 I/O Processing and Response Lag
3.8.1 Refresh mode
The operation result in an output (Y) sequence program is output to the output (Y)
device memory in the CPU module every time the operation is performed, and the
ON/OFF data of the output (Y) device memory are batch-output to the output module
before start of sequence program operation.
CPU module
CPU
(operation
processing area)
Input (X)
3)
device
memory
X0
4)
Y22
Y20
5)
• Input refresh:
Before start of the sequence program operation, input data are batch-read from the input module
(1) and ORed with the GX Developer input area or remote input refresh area data, and the results
are stored into the input (X) device memory.
• Output refresh:
Data in the output (Y) device memory is output in a batch 2) to the output module before
sequence program operation starts.
• When an input contact instruction has been executed:
Input information is read 3) from the input (X) device memory, and a sequence program is
executed.
• When an output contact instruction has been executed:
Output information is read 4) from the output (Y) device memory, and a sequence program is
executed.
• When an output OUT instruction has been executed:
The sequence program operation result 5) is stored in the output (Y) device memory.
Figure 3.59 I/O Information Flow in Refresh Mode
* 1 : The input area for GX Developer can be turned ON/OFF by:
• Test operation using GX Developer
• Write from network module
* 2 : The output (Y) device memory can be turned ON/OFF by:
• Test operation using GX Developer
• Link refresh of CC-Link IE controller network,
• Link refresh of MELSECNET/H network system
• Write from external device using MC protocol
• Automatic refresh of CC-Link
* 3 : The remote input refresh area indicates the area used when automatic refresh setting is made to
the input (X) with CC-Link IE controller network, MELSECNET/H and CC-Link.
Automatic refresh of the remote input refresh area is performed during END processing.
Remote
input refresh
area
3
GX
Developer
input area 1
Area for
communication
with input module
2
Output (Y)
device
memory
network
module
At input
refresh
Input
module
1)
At output
refresh
Output
2) module
network
module