Omron NX701-17 Series User Manual page 203

Event name Process Data Reception Timeout
Meaning Process data reception timed out.
Source EtherCAT Master Function Module
Error attributes Level
Effects User program
Indicators EtherCAT NET RUN
---
System-defined Variable
variables
_EC_PDTimeoutErr
Cause and Assumed cause
correction
The Ethernet cable is broken or the
specified cable is not being used.
A connector on the Ethernet cable is
disconnected, the contact is faulty, or
parts are faulty.
A general-purpose Ethernet hub is
connected.
The master failed.
The slave failed.
The Ethernet cable is too long.
The CPU Unit task period is too short.
Noise
Attached Attached Information 1: Error Details
information
Precautions/ None
Remarks
NJ/NX-series CPU Unit Built-in EtherCAT Port User's Manual (W505)
Source details
Minor fault Recovery
Continues. Operation
EtherCAT NET ERR
Flashes at 1-s intervals.
Data type
BOOL
Correction
The causes given on the left are pos-
sible if the error occurs from when the
system starts operation or if it always
occurs after a specific time after the
system starts operation. Use the diag-
nostic and statistical information from
the Sysmac Studio and check the
EtherCAT communications status. If
the Ethernet cable between the mas-
ter and slave is broken or if the speci-
fied cable was not used, replace the
cable. Or, reconnect the connector
and make sure it is mated correctly. If
a general-purpose Ethernet hub is
connected, replace it with an Ether-
CAT Junction Slave. If the CPU Unit
or an EtherCAT slave fails, replace it.
The causes given on the left are pos-
sible if the error occurs from when the
system starts operation. If the Ether-
net cable is too long, shorten it. If the
error still occurs, connect the Sysmac
Studio, increase the task period of the
primary periodic task or priority-5 peri-
odic task, and reconfigure the Con-
troller.
If this error occurs irregularly, imple-
ment noise countermeasures.
0001 hex: Occurred in the primary periodic task.
0002 hex: Occurred in the priority-5 periodic task.
9 Troubleshooting
Event code 842B0000 hex
Master Detection
timing
Error reset Log category
When Fail-soft Operation Is Set to Fail-soft
Master:
Operation continues.
Slave:
Errors only occur in synced slaves. Operational state con-
tinues. Safe-operational state is entered if the state transi-
tion is made at the slave.
When Fail-soft Operation Is Set to Stop
Master:
All slaves enter the Pre-operational state.
Slave:
Errors only occur in synced slaves.
EtherCAT LINK/ACT
---
Name
Process Data Reception Timeout
Prevention
Make sure that the cable is not bro-
ken and use the specified cable.
Confirm that the Ethernet cable con-
nector is mated securely.
When branching an EtherCAT net-
work, use an EtherCAT Junction
Slave.
None
None
Make the Ethernet cable as short as
possible.
If there is a large number of EtherCAT
slaves connected, increase the task
period of the primary periodic task or
priority-5 periodic task .
Implement noise countermeasures.
During communi-
cations
System
9
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