12 Troubleshooting and Maintenance
12 - 14
GX-series EtherCAT Slave Unit User’s Manual
A table that describes the error event codes that are displayed on the Sysmac Studio is given below.
This function is supported by unit version 1.1 or later of the GX-series Digital I/O Slave Units, Analog
I/O Slave Units, and Encoder Input Slave Units and unit version 1.0 or later of the GX-series IO-Link
Master Unit.
The errors (i.e., events) that can occur in the GX-series EtherCAT Slave Unit are given on
the following pages. Event levels are given as following in the tables:
Maj: Major fault level
Prt: Partial fault level
Min: Minor fault level
Obs: Observation
Info: Information
Refer to the NJ-series Troubleshooting Manual (Cat. No. W503) for all of the event codes that may
occur in an NJ-series Controller.
12-1-4 Sysmac Error Status Codes
Error List
Event code Event name Meaning Assumed cause
Level
Reference
Maj Prt Min Obs Info
04A00000 hex Expansion
Unit Hardware
Error
An Expansion Unit
was disconnected
during operation or
a signal between
the Slave Unit and
Expansion Unit was
broken.
• The Expansion Unit is
disconnected.
• The Expansion Unit is faulty.
√ 12-16
04A20000 hex Slave
Hardware
Error
A hardware error
occurred in the
Slave Unit.
• The Slave Unit is faulty. √ 12-16
14A00000 hex Non-volatile
Memory
Checksum
Error
An error occurred in
the control
parameters.
• Noise √ 12-17
24610000 hex Switch Setting
Error
The setting switch
is set out of range.
• The analog range that is set on
the switch is outside the setting
range.
√ 12-17
64CC0000 hex I/O
Disconnection
Detected
An I/O signal line is
disconnected.
• I/O signal wiring is
disconnected or has a faulty
connection.
• An I/O signal line is
disconnected.
√ 12-18
84A00000 hex Slave Unit
Verification
Error
A verification error
occurred for the SII.
• An error occurred in the control
board.
√ 12-18
04A10000 hex Non-volatile
Memory
Hardware
Error
An error occurred in
non-volatile
memory.
• Non-volatile memory is faulty. √ 12-19
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