12-7
12 Troubleshooting
NJ-series CPU Unit Software User’s Manual (W501)
12-1 Operation after an Error
12
12-1-3 Non-fatal error in CPU Unit
Operation in the Function Module Where an Error Event Occurred
I/O Operation for Major Fault Level Controller Errors
The following table gives the operation of the CPU Unit and the I/O devices for the following errors.
• Unsupported Unit Detected
• I/O Bus Check Error
• End Cover Missing
• Incorrect Unit/Expansion Rack Connection
• Duplicate Unit Number
• Too Many I/O Points
• I/O Setting Check Error
Event level
Major fault level Partial fault level Minor fault level Observation
Function module
PLC Function Module
User program
execution stops.
--- Operation continues.
Motion Control Func-
tion Module
All axes stop.
(The stop
method depends
on the error.)
All axes stop. (The
stop method
depends on the
error.)
• The affected axis/axes
group stops. (The stop
method depends on
the settings.)
• The motion control
instructions that are
related to axis opera-
tion are not executed.
• Axis operation contin-
ues.
• The motion control
instructions that are
not related to axis
operation are not exe-
cuted.
EtherCAT Master Func-
tion Module
I/O refreshing for
EtherCAT com-
munications
stops. (The
slaves operate
according to the
settings in the
slaves.)
EtherCAT communi-
cations stop. (The
slaves operate
according to the set-
tings in the slaves.)
I/O refreshing for Ether-
CAT communications
stops or continues
according to the fail-soft
operation settings in the
master. (If I/O refreshing
stops, the slaves operate
according to the settings
in the slaves.)
I/O refreshing for Ether-
CAT communications
continues.
EtherNet/IP Function
Module
Part of the Ether-
Net/IP communi-
cations stop.
(Online connec-
tions to the Sys-
mac Studio and
communications
connections with
NS-series PTs
are possible.
(Output (pro-
duce) tags in the
tag data links
operate accord-
ing to the tag set
settings.)
EtherNet/IP commu-
nications stop. (The
Sysmac Studio and
NS-series PT cannot
connect communica-
tions.)
Part of the EtherNet/IP
communications stop. (It
is possible to connect
communications when
the Sysmac Studio or
NS-series PT communi-
cations connection is not
the cause of the error.)
EtherNet/IP communica-
tions continue.
To Next Page
Loading...
Need help?
General
