Mitsubishi QJ71MT91 User Manual

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MELSEC-Q
11 TROUBLESHOOTING
Occurrence Error
Code
Error Name Description Lit LED Corrective Action
1) 2) 3) 4) 5)
7382H Sub-code error
The request message of the
sub-code not supported by
the QJ71MT91 slave function
was received.
COM.ERR.
Confirm the sub-code supported
by the QJ71MT91 slave
function, and review the request
message to be sent.
7383H
The MODBUS
R
device
assignment parameters have
not been set for the
MODBUS
R
device specified
in the received request
message.
The MODBUS
R
device
assignment parameter setting
is in process.
COM.ERR.
• Set the MODBUS
R
device
assignment parameters for the
MODBUS
R
device specified in
the received request message.
• Adjust the timing for the
request message transmission
on the master side so that
communication is started after
the MODBUS
R
device
assignment parameter setting
existence (XA) turns ON.
7384H
The range of the
MODBUS
R
device specified
in the received request
message is outside the
MODBUS
R
device
assignment parameter setting
range.
COM.ERR.
Set the MODBUS
R
device
assignment parameter so that
the MODBUS
R
device specified
in the received request
message is within the range.
7385H
The range of the MODBUS
R
device specified in the
received request message
exceeds the maximum value*
of the MODBUS
R
device.
*: The maximum value of the
extended file register is
"10000", and that of any
other MODBUS
R
device is
"65536".
COM.ERR.
Review the specified data of the
MODBUS
R
device on the
master side from which the
request message was sent.
7386H
MODBUS
R
device
specification error
The access points of the
MODBUS
R
device specified
in the received request is
greater than the maximum
access points of the
corresponding function.
COM.ERR.
Review the specified data of the
MODBUS
R
device on the
master side from which the
request message was sent.
7390H
Byte count
specification error
The write points of the
received request message
does not match the specified
byte count.
COM.ERR.
Review the specified data of the
write points and byte count on
the master side from which the
request message was sent.
7391H
Received data
size error
The write device data size of
the received request
message does not match the
specified byte count.
COM.ERR.
Review the specified data of the
write device data size and byte
count on the master side from
which the request message was
sent.
7392H
Reference type
error
The reference number value
specified in the received
request message (FC:20,
FC:21) is incorrect.
COM.ERR.
Review the specified reference
number value on the master
side from which the request
message was sent.
(Continued on next page)

Mitsubishi QJ71MT91 Specifications

General

Brand	Mitsubishi
Model	QJ71MT91
Category	Controller
Language	English