504
(3) Drive and file
(4) External communication (Service processing)
Item Precautions Replacement method Reference
Boot file setting The boot file setting is not supported.
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.
Page 104, Section 2.11
Item Precautions Replacement method Reference
Time reserved for
communication
processing
The time reserved for communication processing
(SM315/SD315) is not supported.
Set service processing time in the PLC system
tab of the PLC parameter dialog box.
Page 240, Section 3.24.1
MC protocol
The following commands cannot specify monitoring
conditions.
Randomly reading data in units of word
(Command: 0403)
Device memory monitoring (Command: 0801)
The applicable frame types are as follows:
QnA-compatible 3C/4C frame
QnA-compatible 3E frame
4E frame
---
MELSEC Communication
Protocol Reference
Manual
To Next Page
Loading...
