10 - 12 10 - 12
MELSEC-Q
10 TROUBLESHOOTING
Error
code
(Hex.)
Detected
in:
Description Action
Detectability
Master
function
Slave
function
3B
H
QJ71DN91
Two or more identical node numbers
(MAC IDs) were detected in parameters.
• The same node No. is set for two or more
slave nodes. Correct the duplicated
parameter settings.
• A slave node having the same node No.
as that of this node exists in the
parameters.
47
H
QJ71DN91 Incorrect connection type was specified.
• Check if the connection type value is
correct.
• Read the communication error
information, and take appropriate actions.
80
H
QJ71DN91
The polling connection in the slave
function has timed out.
• Check the entire network and slave node
states for any fault such as disconnection
of a terminating resistor.
• Check the master node status.
81
H
QJ71DN91
A connection other than for explicit
messages and polling was allocated.
• Do not allocate any I/O connection other
than for polling.
82
H
QJ71DN91
The number of bytes received by polling
is greater than the max. number of
receive points.
• Set the master node’s I/O points that
match the settings of the QJ71DN91.
Summary of Contents for QJ71DN91
Page 1: ...DeviceNet Master Slave Module User s Manual QJ71DN91 GX Configurator DN SW1D5C QDNU E ...
Page 2: ......
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