Aclara Power-Line Systems Inc. Y72553-1 Manual Do Utilizador

T W A C S

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This chapter explains how to test and manage typical TWACS

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 ORION

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 system 

problems. It is useful for installers and meter shop personnel. Foremost, it provides 

diagnostic information through the TNS and TWACS NG systems which give you 

a better assessment of problem conditions before field personnel are dispatched.

There are three essential sources of diagnostic information:

• The Intelligent End Device (IED) status, including leak detection, tamper 

detection, and port assignment.

• Among the four bytes of total consumption readings are specific bits of data 

for port-specific status information.

• The EMTR-3 diagnostic indicators.

Complete the following steps to determine if a field visit is required for an 

unresponsive meter. You can end the procedure at any step and correct the problem 

when a cause of failure is determined.

Check the AMRCOMMFAIL table for TWACS serial numbers that have 

excessive AMR Communication Failure counts. This enables you to 

identify meters that are consistently failing AMR.
If the meter fail count in the AMRCOMMFAIL table is equal to or greater 

than the MaxFailCnt in the TNSDEFAULTS table, the Quality Code (QC) 

will be set to RO (Retry Override). When the quality code is RO, the meter 

unit map will have changed in the AMRCMDLST2WAY table.  The meter 

will be attempted the first time, but will not be issued subsequent retries and 

must be read manually.

Determine if any error messages have occurred during AMR by checking 

the SCE Notification log for any associated hardware issues for the meters 

that are not communicating.

The Notification log contains important information about the status of 

equipment and is automatically updated by TNS and the SCE. For detailed 

information about the Notification log and error messages, see the 

Notification Log section of the SCE Logs chapter in the TNS Operational 

Process Guide (Y10352TM) and the Notification Log section in the SCE 

Maintenance chapter of the TNS End User Guide (Y10285TM).

DRAFT