Mitsubishi Q00JCPU User Manual page 130

3
SEQUENCE PROGRAM CONFIGURATION AND
EXECUTION CONDITIONS
(2) Device latch specification
Basic
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Basic
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Basic
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Basic
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Note39
3
3.7 Data Clear Processing
- 65
Make the latch specification (latch range setting) for each device in the device setting
of the PLC parameter dialog box of GX Developer.(
(a) Latch range setting
The latch range can be set by the following 2 methods using GX Developer.
1) Latch clear operation enable (Latch (1) first/last)
Set the latch range that can be cleared by the latch clear operation performed
by the RESET/L.CLR switch
2) Latch clear operation disable (Latch (2) first/last)
Set the latch range that cannot be cleared by the latch clear operation
performed by the RESET/L.CLR switch
(b) Clearing device data set to latch clear operation enable
• Latch clear operation by the RESET/L.CLR switch
• Clear operation by the remote latch clear(
Developer
(c) Clearing device data set to latch clear operation disable
The device set to latch clear operation disable can be cleared only by the
instruction or GX Developer.
1) Clearing by instruction
Reset the device data using the RST instruction or transfer K0 using the MOV/
FMOV instruction.
QCPU (Q Mode)/QnACPU Programming Manual (Common Instructions)
2) Clearing by GX Developer
Choose [Online]
(including latch).
POINT
When the start mode of the Redundant CPU is the hot-start mode, the data
outside the latch range are also held.
(Except some devices such as the step relay and index register.)
Remark
Refer to the following manual for the operation of GX Developer.
GX Developer Operating Manual
The Basic model QCPU cannot perform latch clear by switch operation.
Note3.38
or the remote latch
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[Clear PLC memory] and execute device memory all clear
Section 6.3(5))
clear.Note38
or the remote latch clear.
Note3.38
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Section 6.6.4)from GX