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4.1.1 How DeltaV SIS Annunciates Faults

DeltaV SIS provides standard alar

DeltaV SIS provides standard alarms to annunciate, in DeltaV Operate, faultsms to annunciate, in DeltaV Operate, faults

detected by the SLS 1508. No special configuration is needed. At runtime the alarms detected by the SLS 1508. No special configuration is needed. At runtime the alarms are part of a container with the SLS name. When an SLS alarm appears on the alarm are part of a container with the SLS name. When an SLS alarm appears on the alarm banner in DeltaV Operate and is clicked by the operator, the SLS faceplate opens. The banner in DeltaV Operate and is clicked by the operator, the SLS faceplate opens. The faceplate shows

faceplate shows the active alarm(s): the active alarm(s): FFAILED_ALM, MAINT_ALM,AILED_ALM, MAINT_ALM,  ADVISE_ALM, or

 ADVISE_ALM, or COMM_ALM. It also shoCOMM_ALM. It also shows the text for the ws the text for the active condition oractive condition or “Multiple conditions” if more than one alert c

“Multiple conditions” if more than one alert condition is active for the particularondition is active for the particular alarm.

alarm.

 A button on t

 A button on the faceplate toolbar opens Diagnostics Explorer in he faceplate toolbar opens Diagnostics Explorer in the context of the context of thethe SLS. The SLS container has a number of diagnostic parameters access

SLS. The SLS container has a number of diagnostic parameters accessible at runtimeible at runtime by the SLS path. There is also a container for the SLS 1508 card, accessible at runtime by the SLS path. There is also a container for the SLS 1508 card, accessible at runtime by the controller path using the leftmost slot number of the card, for example,

by the controller path using the leftmost slot number of the card, for example, CTLR1/IO1/C05/

CTLR1/IO1/C05/ param_name  param_name ..  A redundant SLS has

 A redundant SLS has diagnostic parameters for each Sdiagnostic parameters for each SLS card and for LS card and for the SLS itself.the SLS itself.  Table

 Table 4-14-1 is an example of Diagnostics  is an example of Diagnostics Explorer showing the diagnostic parametersExplorer showing the diagnostic parameters for the highlighted SLS. There is an “alerts”

for the highlighted SLS. There is an “alerts” bitstring parameter associated with thebitstring parameter associated with the Failed, Maint, and Advise alarms. The alar

Failed, Maint, and Advise alarms. The alar m is active if any bit is set in m is active if any bit is set in thethe

corresponding alerts parameter. The Comm alarm is active if the DeltaV controller corresponding alerts parameter. The Comm alarm is active if the DeltaV controller cannot communicate with the SLS 1508 (or both cards, if redundant).

Fig

Figure ure 4-1 4-1 DiaDiagnognostistics Ecs Explxploreorer Shor Showiwing Cng Contontentents of ts of the SLhe SLS CoS Contantaineiner r 

Fi

Figugurere 4-4-22 is an example of the Di is an example of the Diagnostics Explorer showing the diagnosticagnostics Explorer showing the diagnostic parameters of the left SLS card of a

parameters of the left SLS card of a redundant pair. The right SLS card has the sameredundant pair. The right SLS card has the same parameters. There is a bitstring parameter for the status of each subsystem. T

parameters. There is a bitstring parameter for the status of each subsystem. The bits inhe bits in these subsystem status parameters map into bits of the alerts parameters in the SLS these subsystem status parameters map into bits of the alerts parameters in the SLS container. A simplex SLS has direct mapping, but a redundant SLS combines the container. A simplex SLS has direct mapping, but a redundant SLS combines the subsystem status conditions into the alerts parameters. If the subsystem status subsystem status conditions into the alerts parameters. If the subsystem status condition is active in either SLS 1508 card, the mapped aler

Figur

Refer to the “SLS Diagnostic Parameters” topic in the DeltaV SIS book in DeltaV Refer to the “SLS Diagnostic Parameters” topic in the DeltaV SIS book in DeltaV Books Online for details on the subsy

Books Online for details on the subsystem status and alert bitstring parametestem status and alert bitstring parameters.rs.  The topic describes:

 The topic describes:



  The text and meaning of each  The text and meaning of each conditioncondition 

 How subsystem status bits map into alert bitsHow subsystem status bits map into alert bits 

  What action to take when  What action to take when an alert condition becomes activan alert condition becomes activee 

  Which conditions annunciate and  Which conditions annunciate and impact device integrity impact device integrity  

  Which conditions are event-only and do not  Which conditions are event-only and do not impact device integrity impact device integrity 

 Y

 You can change tou can change the priority of he priority of the Failed, the Failed, Maint, Advise, Maint, Advise, and Comm alarms. and Comm alarms. BecauseBecause certain error conditions ca

certain error conditions can exist momentarilyn exist momentarily, avoid alarm priorities that are auto-, avoid alarm priorities that are auto- acknowledging.

acknowledging.