Omron PROFINET NX-PNC202 User Manual page 249

Event name NX Unit Communications Timeout
Meaning An error occurred in IO data communications with the NX Units.
Source Build-in Ethernet port
Error Level
attributes
Effects User program
Sys- Variable
tem-defined
None
variables
Cause and Assumed cause
correction
An NX Unit is not mounted prop-
erly.
An NX Unit has failed.
Attached Attached information 1: Unit number of the NX Unit where the error was detected
information
Precautions/ None
Remarks
NX-series PROFINET Coupler Unit User's Manual (W623)
Source details
Minor fault Recovery
Continues. Operation
Data type
---
Correction
Mount the NX Units and End
Cover securely and secure them
with End Plates.
If the error occurs again even after
you make the above correction,
replace the NX Unit.
12 Troubleshooting
Event code 84C00000 hex
Communica- Detection
tions Coupler timing
Unit
Reset error in Log category
Communica-
tions Coupler
Unit.
When Fail-soft Operation Is Set to Fail-soft
Not affected.
When Fail-soft Operation Is Set to Stop
• Communications Coupler Unit, PROFINET Com-
munications
Ethernet communication stops.
• Communications Coupler Unit, NX Bus
IO refreshing for the NX Units in the IO Device Ter-
minal stops.
Name
---
Prevention
Mount the NX Units and End
Cover securely and secure them
with End Plates.
None
Continuously
System log
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