Omron NJ Series Troubleshooting Manual page 41

Always confirm safety at the connected equipment before you reset Controller errors for a CJ-
series Special Unit. When the Controller error is reset, the Unit where the Controller error with an
event level of observation or higher will be restarted. Before you reset all errors, confirm that no
Controller errors with an event level of observation or higher have occurred for the CJ-series
Special Unit. Observation level events do not appear on the Controller Error Tab Page, so it is
possible that you may restart the CJ-series Special Unit without intending to do so. You can
check the status of the _CJB_UnitErrSta[0,0] to _CJB_UnitErrSta[3,9] Error Status variables on
a Watch Tab Page to see if an observation level Controller error has occurred.
Precautions for Correct Use Precautions for Correct Use
Resetting an error is not the same as eliminating the cause of the error. Always eliminate the
cause of an error before you perform the procedure to reset the error.
Error Resetting Methods
Method
Commands from
Sysmac Studio
Commands from an
NS-series PT*
Commands from the
user program
Commands from a
host computer
Cycling the Control-
ler's power supply
* To reset errors from an NS-series PT, connect the PT to the built-in EtherNet/IP port on the CPU Unit.
NJ-series Troubleshooting Manual (W503)
Errors that are
Operation
reset
Resetting Controller Resetting all errors
errors for all function mod-
ules
Downloading Resetting all errors
for a specific func-
tion module
Memory All Clear Resetting all errors
for all function mod-
ules
Controller reset
Resetting Controller
errors
Resetting Controller Resetting errors for
errors individual function
modules
Resetting Controller Resetting all errors
errors with CIP mes- for all function mod-
sages ules
--- Resets all errors.
1 Overview of Errors
Description
Reset the Controller errors from the Sys-
mac Studio's Troubleshooting Dialog Box.
After the causes of the Controller errors are
removed, all Controller errors in the relevant
function module are reset as a result. Errors
are not reset when you download the Con-
troller Configurations and Setup.
After the causes of the Controller errors are
removed, all Controller errors in all function
modules are reset as a result.
After the causes of the Controller errors are
removed, all Controller errors in all function
modules are reset as a result.
Reset Controller errors from the Trouble-
shooter of an NS-series PT that is compati-
ble with NJ-series Controllers.
You can reset errors from a PT that is not
directly compatible with the NJ-series Con-
troller or another company's HMI if you use
the PT/HMI in combination with the reset
error instruction for the function module in
the user program.
Execute the reset error instruction for the
function module in the user program.
• For the Motion Control Function Module,
you can reset all errors, errors for a par-
ticular axis, or errors for a particular axes
group.
• For the I/O bus, you can reset all errors or
just the errors for a particular Unit.
Use a CIP message from a host computer
to reset errors.
After the causes of the Controller errors are
removed, all Controller errors in all function
modules are reset as a result.
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