856
APPX
Appendix 5 List of Special Register Areas
Instruction related
The following is the list of special register areas relating to the instruction-related items.
No. Name Data stored Details Set by
(setting
timing)
CPU
SD757 Current interrupt
priority
Current interrupt
priority
The priority for the interrupt of the interrupt program currently
executed is stored.
1 to 8:Priority for the interrupt pointer of the interrupt program
currently being executed
0: No interrupt operation (default)
S (Status
change)
ALL
SD758 Interrupt disabling for
each priority setting
value
Interrupt disabling for
each priority setting
value
The interrupt priority of the interrupt program that the interrupt is
disabled by using the DI instructions (Disabling interrupt programs/
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)
S (Status
change)
ALL
SD760 Unicode text file faulty
area in the
DBIMPORT
instruction
Row number of the
Unicode text file
(lower)
If an error in the Unicode text file is detected when the
DBIMPORT(P) instruction is executed, the row number of the
Unicode text file is stored. The value is stored when the error
completion signal of the DBIMPORT(P) instruction is turned on and
is cleared to 0 when the DBIMPORT(P) instruction is executed.
S (Status
change)
Rn
SD761 Row number of the
Unicode text file
(upper)
S (Status
change)
Rn
SD771 Specification of the
number of write
instruction executions
to data memory
Specification of the
number of write
instruction executions
to data memory
In this register, the maximum number of the data memory writing
instruction (SP.DEVST) executions per day is specified.
When the number of data memory writing instruction executions
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.
UALL
SD775 Selection of refresh
processing during the
COM instruction
execution
b0 to b4, b6, b13
0: No refresh
execution
1: Refresh execution
b15
0: Device/Label
access service
processing
execution
1: No device/Label
access service
processing
execution
In this register, whether or not each processing is executed during
the COM instruction execution is selected (Default: 0).
The specification on the SD775 is effective when SM775 is turned
on.
(1) I/O refresh, I/O fetch from a group out of the multiple CPU
system
(2) Link refresh of the CC-Link module
(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)
UALL
b15 b0b1b2b3b4b5b6b7b12b14 b13
(2)(3)(4)(5)(6)(8) (7)
(1)
1/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0000
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