Instruction Related - Mitsubishi Electric MELSEC iQ-R-R00CPU User Manual

Instruction related

The following is the list of special register areas relating to the instruction-related items.
No. Name
SD757 Current interrupt
priority
SD758 Interrupt disabling for
each priority setting
value
SD760 Unicode text file faulty
area in the
DBIMPORT
instruction
SD761
SD771 Specification of the
number of write
instruction executions
to data memory
SD775 Selection of refresh
processing during the
COM instruction
execution
APPX
856
Appendix 5 List of Special Register Areas
Data stored Details
Current interrupt The priority for the interrupt of the interrupt program currently
priority executed is stored.
1 to 8:Priority for the interrupt pointer of the interrupt program
currently being executed
0: No interrupt operation (default)
Interrupt disabling for The interrupt priority of the interrupt program that the interrupt is
each priority setting disabled by using the DI instructions (Disabling interrupt programs/
value Disabling interrupt programs with specified priority or lower) and the
EI instruction (Enabling interrupt programs) is stored in this register.
Note that safety programs are unaffected by SD758, and are
executed based on the safety cycle time.
1: Interrupt programs with priority 1 or lower (all priority levels)
disabled (default)
2: Interrupt programs with priority 2 or lower disabled
3: Interrupt programs with priority 3 or lower disabled
4: Interrupt programs with priority 4 or lower disabled
5: Interrupt programs with priority 5 or lower disabled
6: Interrupt programs with priority 6 or lower disabled
7: Interrupt programs with priority 7 or lower disabled
8: Interrupt programs with priority 8 or lower disabled
0: No interrupt program disabled (interrupt programs with any
priority level enabled)
Row number of the If an error in the Unicode text file is detected when the
Unicode text file DBIMPORT(P) instruction is executed, the row number of the
(lower) Unicode text file is stored. The value is stored when the error
completion signal of the DBIMPORT(P) instruction is turned on and
Row number of the
is cleared to 0 when the DBIMPORT(P) instruction is executed.
Unicode text file
(upper)
Specification of the In this register, the maximum number of the data memory writing
number of write instruction (SP.DEVST) executions per day is specified.
instruction executions When the number of data memory writing instruction executions
to data memory exceeds the value specified in this register, an error is generated.
Setting range is from 1 to 32767. If a value is set outside the range,
an error is generated during the data memory writing instruction
execution.
b0 to b4, b6, b13 In this register, whether or not each processing is executed during
0: No refresh the COM instruction execution is selected (Default: 0).
execution The specification on the SD775 is effective when SM775 is turned
1: Refresh execution on.
b15
b15 b14 b13
0: Device/Label
1/0
access service
processing
execution (8)
1: No device/Label
(1) I/O refresh, I/O fetch from a group out of the multiple CPU
access service
system
processing
(2) Link refresh of the CC-Link module
execution
(3) Link refresh of the CC-Link IE Controller Network module and
MELSECNET/H module
(4) Intelligent function module refresh
(5) Refresh with the CPU buffer memory of the multiple CPU
system (END)
(6) Link refresh of the CC-Link IE Field Network module
(7) Link refresh of CC-Link IE Field Network Basic
(8) Device/label access service processing (communications with
an engineering tool, GOT, or other external devices)
b12 ∙∙∙ b7 b6 b5 b4
0 1/0 0 1/0 0 1/0
(7) (6) (5)
Set by
(setting
timing)
S (Status
change)
S (Status
change)
S (Status
change)
S (Status
change)
U
U
b3 b2 b1 b0
1/0 1/0 1/0 1/0
(4) (3) (2) (1)
CPU
ALL
ALL
Rn
Rn
ALL
ALL