Mitsubishi Electric Q26UD(E)HCPU - Page 491

489
APPENDICES
A
Appendix 2 List of Special Relay Areas
SM1563
Data tracking
transfer trigger
specification
OFF: No trigger
ON: Trigger
SM1563 Block 44
• When data is
transferred based
on the tracking
setting of the
Redundant
parameter window,
the target block is
specified as
trigger.
• When "Do auto
forward Tracking
block No.1" is
selected for the
tracking setting,
SM1520 is turned
on by the system
at power-on or
when the system
is switched from
STOP to RUN. In
other cases,
SM1520 to
SM1583 are
turned on by the
user.
S (Initial)/U New QnPRH
SM1564 SM1564 Block 45
SM1565 SM1565 Block 46
SM1566 SM1566 Block 47
SM1567 SM1567 Block 48
SM1568 SM1568 Block 49
SM1569 SM1569 Block 50
SM1570 SM1570 Block 51
SM1571 SM1571 Block 52
SM1572 SM1572 Block 53
SM1573 SM1573 Block 54
SM1574 SM1574 Block 55
SM1575 SM1575 Block 56
SM1576 SM1576 Block 57
SM1577 SM1577 Block 58
SM1578 SM1578 Block 59
SM1579 SM1579 Block 60
SM1580 SM1580 Block 61
SM1581 SM1581 Block 62
SM1582 SM1582 Block 63
SM1583 SM1583 Block 64
SM1590
System switching
enable/disable
flag from network
module
OFF: System switching
request issuing
module absent
ON: System switching
request issuing
module present
Turns on when a system switching request is
issued from the network module. The module
that issued the request can be checked in
SD1590.
Turns off when all bits of SD1590 are off.
S (Every
END
processing)
New QnPRH
SM1591
Standby system
error detection
disable flag at
system switching
ON: Error is not
detected by new
standby system
at system
switching
OFF: Error is detected
by new standby
system at system
switching
This flag is used when switching the system
in any of the following sources to determine
whether to detect "STANDBY" (error code
6210) in the new standby system:
[Reason(s) for system switching]
• System switching with a programming tool
• System switching using dedicated
instruction
• System switching by the intelligent function
module
UNewQnPRH
SM1592
Enable/disable
user system
switching
OFF: Disable user
system switching
ON: Enable user
system switching
This relay stores whether to enable manual
switching using a programming tool or the
system switching instruction (SP.CONTSW).
UNewQnPRH
SM1593
Setting to access
extension base
unit of standby
system CPU
OFF: Error
ON: Ignored
This relay sets the behavior of the system
after the standby CPU in the separate mode
accessed the buffer memory of an intelligent
function module mounted on an extension
base unit.
• OFF: "OPERATION ERROR" (error code:
4112) is returned.
• ON: No processing
UNewQnPRH
SM1595
Memory copy to
other system
start flag
OFF: Start memory
copy
ON: No memory copy
initiated
When SM1595 is turned on from off, memory
copying from the control system to the
standby system starts. Note that memory
cop
y does not start even after SM1595 was
turned on from off if the I/O No. of the copy
destination (standby system CPU module:
3D1
H
) is not stored in SD1595.
UNewQnPRH
Number Name Meaning Explanation
Set by
(When Set)
Corresponding
ACPU
M9
Corresponding
CPU