Mitsubishi Electric MELSEC iQ-R Series User Manual page 659

No. Name
SM756 Module access
completion wait control
flag
SM775 Selection of refresh
processing during the
COM instruction
execution
SM776 Local device setting at
CALL
SM777 Local device setting in
interrupt programs
SM792 PID bumpless
processing (for the
complete differentiation
PIDCONT instruction)
SM794 PID bumpless
processing (for the
inexact differential
S.PIDCONT
instruction)
SM796 Number of used blocks
information for the
multiple CPU dedicated
instruction (for CPU
No.1)
SM797 Number of used blocks
information for the
multiple CPU dedicated
instruction (for CPU
No.2)
SM798 Number of used blocks
information for the
multiple CPU dedicated
instruction (for CPU
No.3)
SM799 Number of used blocks
information for the
multiple CPU dedicated
instruction (for CPU
No.4)
SM816 Hold mode (S.IN
instruction)
SM817 Hold mode (S.OUT
instruction)
Data stored
Off: Not wait the completion
On: Waits the completion
Off: Executes all the refresh
processing
On: Executes the refresh processing
specified in SD775
Off: Disables local devices
On: Enables local devices
Off: Disables local devices
On: Enables local devices
Off: Matching
On: Not matching
Off: Matching
On: Not matching
Off: The specified number of blocks
is reserved
On: The number of blocks specified
in SD796 is not reserved
Off: The specified number of blocks
is reserved
On: The number of blocks specified
in SD797 is not reserved
Off: The specified number of blocks
is reserved
On: The number of blocks specified
in SD798 is not reserved
Off: The specified number of blocks
is reserved
On: The number of blocks specified
in SD799 is not reserved
Off: Value not held
On: Value held
Off: Value not held
On: Value held
Details
This relay can be used to determine whether the system
must wait until the access is completed before starting the
next instruction when the write access instruction to the
buffer memory of another module is being executed.
This relay can be used to select the refresh processing
target when the COM instruction is executed from two
options: all refresh processing or only refresh processing
specified in SD775.
This relay can be used to determine whether the local
devices on the subroutine program called when the CALL
instruction is being executed are enabled or not.
This relay can be used to determine whether the local
devices are enabled or not when the interrupt program is
being executed.
This relay can be used to specify whether to match SV to
PV in manual mode.
This relay can be used to specify whether to match SV to
PV in manual mode.
• This relay switches to on when the number of remaining
blocks in the dedicated instruction transfer area to be
used in the multiple CPU dedicated instruction (target
machine: CPU No.1) drops below the number of blocks
specified in SD796. This relay is also on when the
instruction is being executed.
• This relay switches to off when there exist free blocks
during the END processing.
• This relay switches to on when the number of remaining
blocks in the dedicated instruction transfer area to be
used in the multiple CPU dedicated instruction (target
machine: CPU No.2) drops below the number of blocks
specified in SD797. This relay is also on when the
instruction is being executed.
• This relay switches to off when there exist free blocks
during the END processing.
• This relay switches to on when the number of remaining
blocks in the dedicated instruction transfer area to be
used in the multiple CPU dedicated instruction (target
machine: CPU No.3) drops below the number of blocks
specified in SD798. This relay is also on when the
instruction is being executed.
• This relay switches to off when there exist free blocks
during the END processing.
• This relay switches to on when the number of remaining
blocks in the dedicated instruction transfer area to be
used in the multiple CPU dedicated instruction (target
machine: CPU No.4) drops below the number of blocks
specified in SD799. This relay is also on when the
instruction is being executed.
• This relay switches to off when there exist free blocks
during the END processing.
Whether to hold the output value or not is specified when
the input value is found to be exceeding the valid range
during the range check processing of the S.IN instruction.
This relay is used to specify whether or not to hold the
output values of the S.OUT1, S.OUT2, and S.DUTY
instructions if a sensor error occurs.
Appendix 4 List of Special Relay Areas
Set by (setting
timing)
U
U
U
U
U
U
S (Instruction
execution/During
END)
S (Instruction
A
execution/During
END)
S (Instruction
execution/During
END)
S (Instruction
execution/During
END)
U
U
APPX
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