Mitsubishi MELSEC Q Series Programming Manual page 1186

Number
Name
SM1552
SM1553
SM1554
SM1555
SM1556
SM1557
SM1558
SM1559
SM1560
SM1561
SM1562
SM1563
SM1564
SM1565
SM1566
Data tracking
transfer trigger
SM1567
specification
SM1568
SM1569
SM1570
SM1571
SM1572
SM1573
SM1574
SM1575
SM1576
SM1577
SM1578
SM1579
SM1581
SM1582
SM1583
System switching
enable/disable
SM1590
flag from network
module
Standby system
error detection
SM1591
disable flag at
system switching
Enable/disable
SM1592 user system
switching
App-178
Meaning
SM1552
SM1553
SM1554
SM1555
SM1556
SM1557
SM1558
SM1559
SM1560
SM1561
SM1562
SM1563
SM1564
SM1565
SM1566
OFF : No trigger
SM1567
ON : Trigger
SM1568
SM1569
SM1570
SM1571
SM1572
SM1573
SM1574
SM1575
SM1576
SM1577
SM1578
SM1579
SM1581
SM1582
SM1583
OFF : System switching
Turns on when a system switching request
request issuing
is issued from the network module. The
module absent
module No. that issued system switching
ON : System switching
can be checked by SD1590.
request issuing
Turns off when all bits of SD1590 are off.
module present
This flag is used when switching the system
ON : Error is not in any of the following sources to determine
detected by new whether to detect "STANDBY" (error code
standby system 6210) in the new standby system:
at system [Reason(s) for system switching]
switching • System switching with a programming
OFF : Error is detected tool
by new standby • System switching using dedicated
system at system instruction
switching • System switching by the intelligent
function module
OFF : Disable user
This relay stores whether to enable manual
system switching
switching using a programming tool or the
ON : Enable user
system switching instruction (SP.CONTSW).
system switching
Explanation
Block 33
Block 34
Block 35
Block 36
• When data is
Block 37
transferred
Block 38
based on the
Block 39
tracking setting
of the
Block 40
Redundant
Block 41
parameter
Block 42
dialog box, the
target block is
Block 43
specified as
Block 44
trigger.
Block 45
• When "Do auto
forward
Block 46
Tracking block
Block 47
No.1" is
Block 48 selected for the
tracking
Block 49
setting,
Block 50
SM1520 is
turned on by
Block 51
the system at
Block 52
power-on or
Block 53
when the
system is
Block 54
switched from
Block 55
STOP to
Block 56
RUN.In other
cases, SM1520
Block 57
to SM1583 are
Block 58
turned on by
Block 59
the user.
Block 60
Block 61
Block 62
Block 63
Corres-
Set by ponding
(When Set) ACPU
M9
S (initial)/U
New
S (Every END
processing)
U
Corresponding
CPU
QnPRH