Mitsubishi Electric Q26UD(E)HCPU User Manual page 494

(17)E-mail send/receive function
Number Name
MC protocol
SM1659 command being
processed flag
MC protocol
SM1660 command error
flag
E-mail address
SM1661 backup
processing flag
Incoming mail
SM1662
check flag
*1 Built-in Ethernet port LCPU whose serial number (first five digits) is "16112" or later
(18)Redundant system (tracking information)
The special relay (SM1700 to SM1799) is valid when the redundant system is in backup mode or in separate
mode. All bits are set to off for stand-alone systems.
Number Name
Transfer trigger
SM1700
completion flag
Manual system
switching
disable/enable
setting during
SM1709
online program
change
redundant
tracking
492
Meaning
• This relay turns on while the MC protocol
command is being processed.
OFF: Not being • If the received mail is an MC protocol
processed command mail, the relay turns off during
ON: Being processed the END processing of the scan where the
command is processed and the return mail
is sent.
• This relay turns on when an MC protocol
command error is detected. The relay also
Turns on when an MC
turns on when execution of MC protocol
protocol command error
command is disabled in parameter.
is detected.
• The relay turns off upon execution of the e-
mail receive instruction.
• This relay turns on when the e-mail
address backup processing starts.
OFF: Not executed
• The relay turns off during the END
ON: Being executed
processing of the scan where the
processing completes.
• This relay turns on when there is incoming
mail on the server when checked.
OFF: No incoming mail
• The relay turns off during the END
ON: Mail arrived
processing of the scan where the e-mail
receive instruction processing completes.
Meaning
OFF: Transfer
This relay remains on for one scan upon
uncompleted
completion of a transfer for any of the blocks
ON: Transfer
1 to 64.
completed
(1) This relay is turned from off to on to
enable the user to switch a system
during online program change for
redundancy. After the manual system
switching disable status is canceled, the
system automatically turns off SM1709.
(2) A system can be switched even a online
program change for redundancy is
ON: Manual system
being performed and regardless of the
switching enabled
status of this relay, if the reason for the
(Disable
switching is any of the following:
canceled)
• Power-off
OFF: Manual system
• Reset
switching
• Hardware failure
disabled
• CPU stop error
(3) The system switching disable status
can also be canceled by this relay
during the following states.
• Multiple-block online program change
redundant tracking execution status
• File batch online program change
redundant tracking execution status
Explanation
(When Set)
Explanation
(When Set)
(Request)/U
Corresponding
Set by
ACPU
M9
S (Status
New
change)
S (Error) New
S (Status
New
change)
S (Status
New
change)
Corresponding
Set by
ACPU
M9
S (Status
New
change)
S
New
Corresponding
CPU
*1
LCPU
*1
LCPU
*1
LCPU
*1
LCPU
Corresponding
CPU
QnPRH
QnPRH