8 Troubleshooting and Maintenance
8 - 12
E3NW-ECT EtherCAT Digital Sensor Communication Unit Operation Manual (E429)
Event name Number of Sensors Over Limit Event code 247B0000 hex
Meaning Too many Sensors are connected.
Source EtherCAT Master Function Module Source details Slave Detection
timing
Continuously
Error attributes Level Minor fault Recovery Error reset (after
automatic slave
recovery)
Log category System
Effects User program Continues. Operation The relevant slave will go to the Init state. I/O communica-
tions and message communications are not possible for
the relevant slave.
Indicators EtherCAT NET RUN EtherCAT NET ERR EtherCAT LINK/ACT
--- --- ---
System-defined
variables
Variable Data type Name
None --- ---
Cause and
correction
Assumed cause Correction Prevention
More than the maximum number of
Sensors are connected.
This event occurs when the cause of
the error is removed and communica-
tions for the relevant slave recover.
Simply reset the error in the Control-
ler.
Do not connect more than the maxi-
mum number of Sensors.
Attached
information
None
Precautions/
Remarks
None
Event name Number of Sensors Verify Error Event code 247C0000 hex
Meaning The number of Sensors that is connected does not agree with the settings.
Source EtherCAT Master Function Module Source details Slave Detection
timing
Continuously
Error attributes Level Minor fault Recovery Error reset (after
cycling the
power)
Log category System
Effects User program Continues. Operation Operation continues with the Sensors that are actually
connected.
Indicators EtherCAT NET RUN EtherCAT NET ERR EtherCAT LINK/ACT
--- --- ---
System-defined
variables
Variable Data type Name
None --- ---
Cause and
correction
Assumed cause Correction Prevention
The set value does not match the
number of Sensors that are actually
connected.
If the setting of the number of con-
nected Sensors is incorrect, correct
the set value. If the number of Sen-
sors that are connected is incorrect,
correct the Sensor connections and
cycle the power supply. If the number
of Sensors are decreased in discon-
necting Distributed Sensor Unit,
re-connect the Distributed Sensor
Unit.
Make sure that the setting of the num-
ber of connected Sensors agrees with
the number of Sensors that are actu-
ally connected.
Attached
information
None
Precautions/
Remarks
The case that the number of Sensors is decreased in disconnecting Distributed Sensor Unit is applicable. The case
that the number of Sensors is increased in connecting Distributed Sensor Unit is not applicable.
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