How To Check For Errors - Omron NX701-17 Series User Manual

9-1-1

How to Check for Errors

You can check to see if an error has occurred with the following methods.
Checking method
Checking the indicators
Troubleshooter of the Sys-
mac Studio
Checking with the Trouble-
shooter of an HMI*
Checking with instructions
that read function module
error status
Checking with system-
defined variables
* To perform troubleshooting from an HMI, connect the HMI to the built-in EtherNet/IP port on the CPU Unit. Refer
to the appendices of the NJ/NX-series Troubleshooting Manual (Cat. No. W503) for the applicable range of the
HMI Troubleshooter.
This section describes the above checking methods.
Checking the Indicators
 CPU Unit Operating Status
You can use the PWR/POWER, RUN, and ERROR indicators to determine the level of an error.
The following table shows the relationship between the CPU Unit indicators and the event level for
an NX-series CPU Unit.
Indicators
PWR/
RUN
POWER
Not lit Not lit
Lit Not lit
Lit Not lit or
flashing
Lit Flashing
for 30 s or
longer
Lit Not lit
Lit Lit
Lit Lit
Lit Lit
Lit Lit
Lit Not lit
Lit Flashing
*1 This error can occur for NX701 CPU Units. If the status of indicators shown above continues 30 seconds or
longer, this error exists.
NJ/NX-series CPU Unit Built-in EtherCAT Port User's Manual (W505)
You can check the error status of the CPU Unit and EtherCAT port.
You can check for current Controller errors, a log of past Controller errors, error
sources, error causes, and corrections.
You can check for current Controller errors, a log of past Controller errors, error
sources, causes, and corrections.
You can check the highest-level status and highest-level event code in the current
Controller errors.
You can check the current Controller error status for each function module.
CPU Unit operating status
ERROR
Not lit Power Supply Error
Not lit
CPU Unit Reset
*3, *2
tialization Error
Lit *4
CPU Unit Error
Not lit System Initialization Error
Lit
Major fault level
Flashing Partial fault level
Flashing Minor fault level
Not lit Observation
Not lit Normal operation in RUN mode
Not lit Normal operation in PROGRAM
*2
mode
Not lit Normal operation in startup state
What you can check
Error confirmation with the Sys-
Not possible: Refer to the NJ/NX-
series Troubleshooting Manual
*1, *2 /
Hardware Ini-
(Cat. No. W503).
*4 Possible: Connect the Sysmac Stu-
dio or an HMI and check the cause
of and correction for the error in the
troubleshooting functions of the
Sysmac Studio or the Trouble-
shooter of the HMI.
---
---
---
9 Troubleshooting
mac Studio or an HMI
9-3
9