Using The Error Log - Omron SYSMAC CS Series Operation Manual

Monitoring the Network
Example
6-7-3

Using the Error Log

Error Log Concept
Detecting New Errors in
the Error Log
1,2,3...
The figure below shows an example of the extended diagnostics window, con-
taining extended diagnostics data. The first row in the diagnostics window
shows the raw data bytes, the second and third row show the actual message
contained within the extended diagnostics message.
The CS1/CJ1W-PRM21 PROFIBUS Master Units are equipped with an error
logging mechanism, which will internally store error events. Most of the errors,
which are stored in the Unit's Error Log are stored in volatile memory, i.e.
when power to the Unit is switched off, the errors are lost.
Severe errors however, are also stored in non-volatile memory, i.e. these
error reports are still available after cycling the power down and up again. The
errors which can be logged are listed in section 7-5-2 Error Codes.
The CS1/CJ1W-PRM21 PROFIBUS Master Units can log up to 80 error
events, 16 of which can be logged in non-volatile memory.
If a new error event is logged in the Error Log of the Unit, a bit flag 03 is set in
the Units Status Word (CIO word n+4, see section 4-2-3 Unit Status (Word
n+4)).
This bit flag can be evaluated by the user, through the CS1/CJ1W-PRM21
Master DTM Diagnosis User Interface. In order to view the bit flag, perform
the following actions.
1. Open the CS1/CJ1W-PRM21 Master DTM Diagnosis User Interface,
2. Select the Monitor - Master Status tab
3. If the Automatic checkbox in the Refresh box has not been selected, press
the Manual button to refresh the status.
The figure below shows as an example this Error Log Updated bit flag, indi-
cating that a new error event has been logged.
Section 6-7
195