Honeywell R0512 manual Alarm Handling, Prior to, 04.x

Page 47

EXCEL 50/100/500/600/800

ALARM HANDLING

The Excel 50/100/500/600/800 alarm handling facility offers a high degree of security by both storing and immediately displaying all alarms that occur at the operator interfaces. The user chooses whether an alarm is critical or non-critical. The user can also create personalized alarm texts, if required.

If your Excel 50/100/500/600/800 is connected to a front-end or a modem, critical alarms are transmitted as high priority.

Point Alarms

The type of alarm generated by a datapoint depends on the type of datapoint involved. Furthermore, there are alarm types which are valid for all datapoints or which refer to system alarms in the control unit.

Limit monitoring In the case of an analog input or pseudo analog point, two maximum limits (limit Max. 1, limit Max. 2) and two minimum limits (limit Min 1, limit Min 2) can be set for a particular value. The limit values are entered in the datapoint description. Each time this limit value is reached, irrespective of the direction, an alarm is triggered. If, for example, a measured value takes on a value that exceeds a maximum limit or drops below a minimum limit, an alarm is generated (alarm reached).

If the value returns from the alarm range to the normal range and, in doing so, reaches a limit value in the opposite direction, an alarm signal is given in the same way (alarm reached).

Since this sequence is identical for all four limit values, a total of eight different alarm signals are possible for one analog datapoint. These eight alarm signal texts are programmed permanently, and require no input from the user.

Alarm status In the case of a digital input or pseudo digital point, a decision can be made whether or not an alarm check is desired. The entry is made in the datapoint description.

Prior to V.2.04.x

 

Alarm Check

Enter "Yes"

No Alarm Check

Enter "No"

If an alarm check is desired, an alarm signal is produced if the digital point changes from Active State to Passive State (alarm reached). When the digital point returns to Active State, an additional signal is generated (alarm going). The two alarm signal texts are permanently programmed and require no input from the user.

The fixing of active and passive states must be carried out in the datapoint description under the attribute "Active State".

0 = Active state with "0" signal

1 = Active state with "1" signal

V.2.04.x

The attribute "Active State" is fixed to “1”. This means that the alarm status is no longer dependant upon the attribute "Active State", but rather only upon the physical contact status and upon the logical status as defined in the online attribute "Normally Open/Normally Closed".

Maintenance Alarm In the case of a digital input, a digital output, or a pseudo digital point, the hours run time entry can be activated and a maintenance interval can be fixed. If the latter is exceeded, an alarm signal is generated. The text of this signal is permanently programmed and requires no input from the user. If a check is to be skipped, a "0" is entered in the datapoint descriptor under the attribute "Maintenance Interval".

Totalizer A pulse input signal interval can be fixed for a totalizer input that, if exceeded, triggers an alarm signal. The alarm signal text is permanently programmed and requires no input from the user. If a check is not desired, a "0" is entered in the datapoint description under the attribute "Interval Count".

45

EN2B-0092GE51 R1111

Image 47
Contents Excel 50/100/500/600/800 Excel 50/100/500/600/800 Contents Value Hysteresis Trend Cycle SubtypeValue Write Protection Excel 50/100/500/600/800 Section Sensor Offset added Revision OverviewChange System Overview Overview Programming Physical Datapoints DatapointsPseudo Datapoints Flexible DatapointsData Points Global DatapointsMapped Datapoints V2.04.xx or higher Attributes Access LevelAcknowledge Alarm V2.04.xx or higher Status text Active State prior toActive State Excel Alarm Status prior to Alarm DelayAlarm Suppression Interval Counter Alarm Status Alarm Status V2.04.xx or higherAlarm Type Alarm DefinitionAttributes Cycle Count Delay Time Switching UpDelay Time Switching Down Engineering Unit Feedback DelayHigh/Low Alarm/Warning Limits DescriptorsHours Run Log Hours Since ServicedHours Run Hysteresis Alarm HysteresisTrend Hysteresis Example of alarm hysteresisBroadcast Hysteresis Intrinsic Hysteresis for Analog Input SignalsInterval Count Input/Output Status Text V2.04.xx or higherInterval Limit CharacteristicBy plug-in For DI on AI Impedance Configured Activated Or low By DIP Diagram High By @Pull-Up Resistor Handling Last ChangeManual Value LED Mode XF823x, XFL823x, and XFx830x modulesMaintenance Alarm Normally Open/Normally Closed V2.04.xx or higher Network Variable V2.04.xx or higherMotor Run Time Off PhaseOperating Mode Resulting value Manual valueRemote value Remote value Resulting Value Point AlarmsOutput Type SubtypeScaling Factor Safety Position XFx822x, XFx824x, and XFx830x modulesPulse Duration Suppress Point Switching DownSensor Offset Trend Logging Switch-On CounterSwitching down Switching down behavior Technical AddressTrend Cycle Value HysteresisFlexible datapoint Number of technical addresses ValueRoom Temp.1.10 Number of technical addresses for flexible datapointsWrite Protection List of Datapoint Attributes Attributes Attributes Daily Program Time ProgramsStructure Individual Time ProgramsAnnual Program Weekly ProgramToday Function Generating a Time ProgramSpecial Day List Time Programs 04.x Alarm HandlingPrior to Benefits System AlarmsSystem alarms Alarm Alarm text Cond Cause/reason English Code #Alarm Handling Warm Start With corresponding function of XBS or XL-Online System Alarms Suppression V .04.xx or higher Data Storage User Program AlarmsAlarms Sent across the System Bus Alarm Handling System Bus Test ModeDistributed I/O testing V2.04.xx or higher CommunicationRuntime Synchronization AccessBus Initialization Bus CommunicationNetwork-Wide Controller Time Synchronization Initialization of Distributed I/O ModulesNew Bus Devices Point Refreshing PC CommunicationExcel IRC Remote CommunicationRemote Modem Connection Controller Firmware 2.04.xx and Higher Remote Trending dial-upGeneral Controller Firmware 2.03.xx and HigherFor all other controllers equipped with Flash Eproms ExcelMiscelleanous Customize Windows Default Regional and Language SettingsHBS Country and Language Settings XL40A2MMI Care Country Controllers with Internal Text MMI XL Online CLTG00MMI CentraLine Country and Language SettingsGraphic MMI CLMMI00N2x Tiger Controllers with Hex Dec Char Unicode ISO/IEC 10646-12000 Character Name Latin Small Letter L Latin Small Letter O with Diaeresis Character Settings Eastern Europe Latin Small Letter D Latin Small Letter U with Ring Above Latin Capital Letter L with Acute Character Settings Turkey Miscelleanous Latin Small Letter D Latin Capital Letter I with DOT Above Latin Capital Letter G with Breve Procedure 1. In Windows, click StartSettingsControl panel Miscelleanous Miscelleanous Miscelleanous Miscelleanous Index ModemfaqAutomation and Control Solutions