Mitsubishi MELSEC Q Series - Page 1159

App-151
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A
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Appendix3 SPECIAL RELAY LIST
*1 The relevant modules are as follows:
•The Universal model QCPU whose serial number (first five digits) is "10012" or later.
•Q13UDHCPU, Q26UDHCPU
*2 The module whose first 5 digits of serial No. is "10102" or later.
SM100
Serial
communication
function using flag
OFF : Serial
communication
function is not
used.
ON : Serial
communication
function is used.
Stores the information of the serial
communication setting configured in the PLC
parameter dialog box.
S (Power-on
or reset)
New
Q00/Q01
Q00UJ/Q00U/
Q01U
Q02UCPU
*2
SM101
Communication
protocol status
flag
OFF : Programming
tool
ON : MC protocol
communication
device
This relay stores whether a device
communicating via RS-232 interface is a
programming tool or MC protocol
communication device.
S (RS232
communicatio
n)
Q00/Q01
Q00UJ/Q00U/
Q01U
Q02UCPU
*2
Communication with
programming tool
This relay is always off.(communication with a
programming tool) LCPU
SM110 Protocol error
OFF : Normal
ON : Abnormal
• Turns on if a failed protocol was used to
make communication in the serial
communication function.
• This relay remains on even after the protocol
returns to normal.
S (Error)
Q00/Q01
Q00UJ/Q00U/
Q01U
Q02UCPU
*2
SM111
Communication
status
OFF : Normal
ON : Abnormal
• Turns on if the mode used to make
communication was different from the mode
set in the serial communication function.
• This relay remains on even after the system
returns to normal.
SM112
Error information
clear
ON : Cleared
This relay is turned on to clear error codes
stored in SM110, SM111, SD110, and SD111.
The error codes are cleared when this relay is
turned on.
U
SM113 Overrun error
OFF : Normal
ON : Abnormal
This relay turns on if an overrun error occurs in
communication using the serial communication
function.
S (Error)SM114 Parity error
OFF : Normal
ON : Abnormal
This relay turns on if a parity error occurs in
communication using the serial communication
function.
SM115 Framing error
OFF : Normal
ON : Abnormal
This relay turns on if a flaming error occurs in
communication using the serial communication
function.
SM165
Program memory
batch transfer
execution status
OFF : Completed
ON : Not being
executed or Not
completed
• This relay turns on when data are written to
the program cache memory.
• This relay turns off when program memory
batch transfer is completed.
• This relay remains on when data written to
the program cache memory are not batch-
transferred to the program memory.
S (Status
change)
QnU
*1
LCPU
Number Name Meaning Explanation
Set by
(When Set)
Corres-
ponding
ACPU
M9
Corresponding
CPU