Mitsubishi Electric Q26UD(E)HCPU User Manual page 586

*1 Diagnostic information of the CPU module in the other system is stored.
*2 Special register areas (SD) for the CPU module in the host system
(21)E-mail send/receive function
Number Name Meaning
Language Language
SD1659
information information
Error code
when an MC
MC protocol
protocol
SD1660 command
command
error code
error is
detected
*1 Built-in Ethernet port LCPU whose serial number (first five digits) is "16112" or later
(22)Redundant system (tracking information)
The special register (SD1700 to SD1779) is valid only for redundant systems. All bits are set to "0" for stand-
alone systems.
Number Name Meaning
Tracking error
Tracking error
SD1700 detection
detection count
count
Waiting time Waiting time
for online for online
program program
SD1710
change change
(standby (standby
system) system)
584
Explanation
This register stores language information of e-mail.
• 0 or other than below: English/Japanese (default)
• 2: Chinese (simplified Chinese characters)
• This register stores the error code when an MC protocol
command error is detected. The error code is also stored
when execution of MC protocol command is disabled in
parameter.
• A value, 0, is set at execution of the e-mail receive
instruction.
Explanation
• A value in this register is incremented by one upon
tracking error.
• The counter starts the routine: counts up from 0 to
32767, then counts down to -32767 and then again
counts up to 0.
• This register stores the waiting time required for starting
the online program change in the standby system after
completion of that in the control system. The value is
specified in units of seconds.
• If online program change is not requested even after it is
completed in the control system, the CPU modules in
both of the system determine that it is a failure of an
online program change for redundancy. In this case,
both system CPU modules resume the consistency
check for the systems that have been on hold during the
online program change. Also, the control system is set to
accept another request of online program change for
redundancy.
• When both systems are powered on, 90 seconds are set
to SD1710 as the default value.
• Set the value within the range 90 to 3600 seconds.
When the setting is 0 to 89 seconds, it is regarded as 90
seconds for operation. If the setting is outside the
allowed range, it is regarded other than 0 to 3600
seconds for operation.
• The waiting time for a start of online program change to
the standby system CPU module is checked according
to the SD1710 setting during online change of multiple
blocks and online change of batch of files for
redundancy.
Corresponding
Set by
ACPU
(When Set)
D9
U New
S (Error) New
Corresponding
Set by
ACPU
(When Set)
D9
S (Error) New
S (Initial)/U New
Corresponding
CPU
*1
LCPU
*1
LCPU
Corresponding
CPU
QnPRH
QnPRH