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12 Troubleshooting
Event name
FSoE Master Connection Timeout
Meaning
A communication timeout occurred in FSoE communications with the FSoE slave.
Source
Depends on where the Sysmac
Studio is connected and the sys-
tem configuration.
Error attrib-
Level
utes
Effects
User program
System-de-
Variable
fined varia-
None
bles
Cause and
Assumed cause
correction
A setting is not correct. The set-
ting of the safety task period is
too short.
There is excessive noise.
The Safety CPU Unit or FSoE
slave entered a state where it
could not continue FSoE commu-
nications.
The process data communica-
tions were not performed correct-
ly because an error or status
change occurred in the NX bus
master to which the Unit is con-
nected.
Attached in-
None
formation
Precautions/
The relevant Units will maintain the safe states for I/O data with FSoE connections after an error is de-
Remarks
tected. However, when the cause of the error is removed, FSoE communications will recover automati-
cally.
12 - 38
Source details NX Unit
Minor fault
Recovery
Continues.
Operation
Data type
None
Correction
Increase the safety task period
and then transfer the settings to
the Safety CPU Unit.
Implement noise countermeas-
ures.
Check the status of the Safety
CPU Unit or FSoE slave.
Check the status of the NX bus
master to which the Unit is con-
nected.
Event code
80300001 hex
Detection tim-
ing
Automatic re-
Log category
covery when
cause of error
is removed
The Unit continues to operate, but the safe states
are used for the I/O data of the safety connection
where the error was detected.
Name
None
Prevention
Set the system configuration and
setup according to the correc-
tions that are given on the left.
Implement noise countermeas-
ures if excessive noise caused
the error.
Refer to troubleshooting informa-
tion for the Safety CPU Unit or
FSoE slave.
Set the system configuration and
setup according to the correc-
tions that are given on the left.
NX-series Safety Control Unit User's Manual (Z930)
In DEBUG
mode (STOP-
PED), DEBUG
mode (RUN),
or RUN mode
System
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Table of Contents
Troubleshooting
