Mitsubishi Electric Q01UCPU User Manual page 500

(3) Drive and file
Item
Boot file setting The boot file setting is not supported.
(4) External communication (Service processing)
Item
Time reserved for
The time reserved for communication processing
communication
(SM315/SD315) is not supported.
processing
The following commands cannot specify monitoring
conditions.
Randomly reading data in units of word
(Command: 0403)
MC protocol Device memory monitoring (Command: 0801)
The applicable frame types are as follows:
QnA-compatible 3C/4C frame
QnA-compatible 3E frame
4E frame
498
Precautions
Precautions
Replacement method
Since the Universal model QCPU holds the data
in the program memory even when the battery
voltage drops, the boot file setting is not
necessary.
Move files with the boot setting (from the
standard ROM to the program memory) to the
program memory.
Replacement method
Set service processing time in the PLC system
tab of the PLC parameter dialog box.
---
Reference
Page 102, Section 2.11
Reference
Page 238, Section 3.24.1
MELSEC-Q/L MELSEC
Communication Protocol
Reference Manual