10.2 Error Codes
10.2.1 Communication error codes
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This section describes error codes and respective corrective actions.
A communication error code is stored in the high byte of Error Information for Master
Function (address: 01B1
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 Works2. (Refer
to Section 10.3.)
When the error-detected node No. (low byte of error information) is FF
The node No. (MAC ID) value is out of
The mode switch value is out of range.
The node No. (MAC ID) is duplicated on
Power is not supplied to the network.
Other modules cannot be identified on
The node number switches or mode
switch has been changed during
) or Error Information for Slave Function (address: 0601
• Set the node No. within the range of 0 to
• Set the mode switch to any other than D
• Set a unique node No.
• Supply power to the network (24VDC).
• Connect other modules to the network.
• Restore the setting of the node number
switches or mode switch.
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