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MELSEC-Q
10 TROUBLESHOOTING
10.2 Error Codes
This section describes error codes and respective corrective actions.
10.2.1 Communication error codes
A communication error code is stored in the high byte of Error Information for Master
Function (address: 01B1
H
) or Error Information for Slave Function (address: 0601
H
).
Read it when Error Set Signal for Master Function (X03) or Error Set Signal for Slave
Function (X08) is set to on, and check the error details.
Communication error codes can be checked in System monitor of GX Developer.
(Refer to Section 10.3.)
(1) When the error-detected node No. (low byte of error information) is FF
H
Error
code
(Hex.)
Detected
in:
Description Action
Detectability
Master
function
Slave
function
36
H
QJ71DN91
The node No. (MAC ID) value is out of
range.
The mode switch value is out of range.
• Set the node No. within the range of 0 to
63.
• Set the mode switch to any other than D
to F.
39
H
QJ71DN91
The node No. (MAC ID) is duplicated on
the network.
• Set a unique node No.
E0
H
QJ71DN91 Power is not supplied to the network.
• Supply power to the network (24VDC).
E1
H
QJ71DN91
Other modules cannot be identified on
the network.
• Connect other modules to the network.
F0
H
QJ71DN91
The node number switches or mode
switch has been changed during
operation.
• Restore the setting of the node number
switches or mode switch.
Summary of Contents for QJ71DN91
Page 1: ...DeviceNet Master Slave Module User s Manual QJ71DN91 GX Configurator DN SW1D5C QDNU E ...
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