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13 Troubleshooting
NX-series EtherCAT Coupler Unit User’s Manual (W519)
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3 Che
cking
for Errors an
d T
ro
u
b
lesho
o
tin
g
o
n
t
h
e Sysm
ac S
tu-
dio
13
13-
3-2 Event Co
des fo
r Err
ors and T
roubleshooting Procedure
s
Event name Illegal State Transition Request Received Event code 350B0000 hex
Meaning An incorrect state transition request was received. (AL-Status Code: 0011 hex)
Source EtherCAT Master Function Mod-
ule Source details EtherCAT Cou-
pler Unit Detection
timing At EtherCAT
communica-
tions state tran-
sition
Error
attributes Level Minor fault Recovery Reset the
EtherCAT mas-
ter parameters. Log category System
Effects User program Continues. Operation Depends on the state when the state transition
request was received.
Sys-
tem-defined
variables Variable Data type Name
None --- ---
Cause and
correction Assumed cause Correction Prevention
An incorrect state transition
request was received. Change states correctly accord-
ing to EtherCAT specifications. Change the communications state
as following for the Slave Termi-
nal: Between Init state and
Pre-Operational state, between
Pre-Operational state and
Safe-Operational state, or
between Safe-Operational state
and Operational state.
Attached
information None
Precautions/
Remarks None
Event name Error State Transition Received Event code 350C0000 hex
Meaning An unclear state transition request was received. (AL-Status Code: 0012 hex)
Source EtherCAT Master Function Mod-
ule Source details EtherCAT Cou-
pler Unit Detection
timing At EtherCAT
communica-
tions state tran-
sition
Error
attributes Level Minor fault Recovery Reset the
EtherCAT mas-
ter parameters. Log category System
Effects User program Continues. Operation Depends on the state when the state transition
request was received.
Sys-
tem-defined
variables Variable Data type Name
None --- ---
Cause and
correction Assumed cause Correction Prevention
An unclear state transition request
was received. Change states correctly accord-
ing to EtherCAT specifications. Change the communications state
as following for the Slave Termi-
nal: Between Init state and
Pre-Operational state, between
Pre-Operational state and
Safe-Operational state, or
between Safe-Operational state
and Operational state.
Attached
information None
Precautions/
Remarks None