Mitsubishi QJ71LP21 Reference Manual page 311

8 TROUBLESHOOTING
Error
Code Error Contents and Cause
*1
(SD0)
The link refresh range exceeded the
file register capacity.
• When the station number of the
MELSECNET/H module is 0, the
inter-PLC network parameter setting
has been made.
• When the station number of the
MELSECNET/H module is other
than 0, the remote master parameter
setting has been made.
• The network No. specified by a
network parameter is different from
that of the actually mounted
network.
• The head I/O No. specified by a
network parameter is different from
3101
that of the actually mounted I/O unit.
• The network class specified by a
network parameter is different from
that of the actually mounted
network.
• The network refresh parameter of
the MELSECNET/H, MELSECNET/
10 is out of the specified area.
A multi-remote I/O network was
configured using a module that does
not support the MELSECNET/H multi-
remote I/O network.
• The system A of the MELSECNET/
H remote master station has been
set to other than Station No. 0.
• The system B of the MELSECNET/
H remote master station has been
set to Station No. 0.
*1 : Characters in parentheses ( ) indicate the special register numbers where individual information is being
stored.
*12 : This applies to the CPU module of function version B or later.
8 - 100
Corrective Action
Change the file register file for the one
that enables entire range refresh.
Correct the type or station number of
the MELSECNET/H module in the
network parameter to meet the used
system.
• Check the network parameters and
mounting status, and if they differ,
match the network parameters and
mounting status.
If any network parameter has been
corrected, write it to the CPU
module.
• Confirm the setting of the number of
extension stages of the extension
base units.
• Check the connection status of the
extension base units and extension
cables.
When the GOT is bus-connected to
the main base unit and extension
base units, also check their
connection status.
If the error occurs after the above
checks, the cause is a hardware fault.
(Contact your local Mitsubishi
representative, explaining a detailed
description of the problem.)
Use a module that supports the
MELSECNET/H multi-remote I/O
network.
• Set the system A of the
MELSECNET/H remote master
station to Station No. 0.
• Set the system B of the
MELSECNET/H remote master
station to any of Station No. 1 to 64.
MELSEC-Q
Corresponding
CPU
*12
Qn(H)
QnPH
QnPRH
QnPH
QnPRH
8 - 100