Binary Input Attributes - Metasys - LIT-1201793 - Software Application - Site Management Portal - 12.0.50

Metasys Site Management Portal Help

Brand
Metasys
Product name
Site Management Portal
Document type
User Guide
Document number
LIT-1201793
Version
12.0.50
Revision date
2023-06-02
Language
English

This object contains attributes common to many Metasys system objects. This section includes attributes of the Focus/Configuration tab, the Diagnostics tab (if applicable), and any other tab specific only to this object. See the Object and Feature Tabs section for information on the attributes that appear on the other tabs of this object (for example, the Hardware and Options tab appear on point objects).

Note: In the Notes and BACnet Notes columns, letters indicate the following: B - Exposed as standard BACnet property, C - Configurable, D - Default Attribute for Display, N - Value Not Required, R - Affected by Extension’s Reliability, W - Writable.
Table 1. Binary Input Object Attributes - Focus/Configuration Tab

Attribute Name

Notes

BACnet Notes

Initial Value

Values/Options/Range

Description

Active Text

 

B

 

Limit: 20 characters

Characterizes the intended effect of the Active state of Present Value from the viewpoint of the operator. The content of this string is a local matter but is intended to represent a readable description of the Active state.

For example, if the physical input is a switch contact, then the Active Text attribute is assigned a value such as Fan 1 On. If either the Active Text or the Inactive Text attribute is present, both of them are present.

If either Inactive Text or Active Text is present, both are present.

Active Time Reset

W

B, W

   

Represents the last date and time Elapsed Active Time was set to a zero value. If either Elapsed Active Time or Time of Active Time Reset is present, all are present.

If either Elapsed Active Time or Time of Active Time Reset is present, both are present.

COS Count

W

B

 

0–4,294,967,295

Represents the number of times the Present Value attribute changes state since the COS Count attribute was most recently set to zero. A change of state is any event that alters Present Value. This attribute persists in the archive.

If Change of State Time, Change of State Count, or Time of State Count Reset is present, all are present.

COS Time

 

B

   

Represents the date and time at which the most recent change of state occurred. A change of state is any event that alters the Present Value attribute. When Out of Service is False, a change to the Polarity attribute alters Present Value and is considered a change of state. When Out of Service is True, changes to Polarity do not cause changes of state.

If Change of State Time, Change of State Count, or Time of State Count Reset is present, all are present.

Device Type

C,W

B,W

Null

Limit: 20 characters

Contains a description of the physical device connected to the object.

Elapsed Active Time

 

B

Null

0–4,294,967,295

Units = seconds

Represents the accumulated number of seconds Preset Value is Active since the Elapsed Active Time attribute was most recently set to zero. This attribute value updates automatically a minimum of once a day.

Inactive Text

 

B

 

Limit: 20 characters

Characterizes the intended effect of the Inactive state of Present Value attribute from the viewpoint of the operator. The content of this string is a local matter, but it is intended to represent a readable description of the Inactive state.

For example, if the physical input is connected to a switch contact, then the Inactive Text attribute is assigned a value such as Fan 1 Off. If either the Inactive Text or Active Text attribute is present, both are present.

If either Elapsed Active Time or Time of Active Time Reset is present, both are present.

Intrinsic Alarming Defined

C

 

False

  Enables the BACnet Intrinsic Alarming feature in the object and the definition of related attributes. For detailed information, see BACnet Intrinsic Alarming.

Out of Service

C,W

B,W

False

 

Indicates (when True) that the Present Value and Reliability attributes are decoupled from the physical input to the object and their values may be changed for simulation or testing purposes. Functions that depend on the values of the Present Value or Reliability attributes continue to respond to changes while Out of Service is True, as if those changes had come from the physical input.

Additionally, the Out of Service state of the Status Flags attribute is set to True and the Fault state is decoupled from the physical input when Out of Service is True.

Polarity

 

B,W

 

Normal, Reverse

Indicates the relationship between the physical state of the input and the logical state represented by Present Value.

The Johnson Controls N2 Polarity attribute is always Normal.

Present Value

DNRW

B,W

0

 

Reliability

W

B,W

Reliable

No Fault Detected (Reliable), No Sensor, Open Loop, Shorted Loop, Unreliable Other, Communication Failure

Examples:

Reliable - No detectable faults

Communication Failure - Communication to the sensor or device reading the sensor has failed.

When Out of Service is True, the Reliability attribute may be written directly.

State Count Reset

W

B, W

   

Represents the date and time the COS Count attribute was most recently set to a zero value. If COS Time or Changeof State Count is present, both are present.

If Change of State Time, Change of State Count, or Time of State Count Reset is present, all are present.

States Text

C,W

 

Off

On

  Indicates the displayed strings for the Present Value.

States Text Error Status

One state from a set  

OK

Out of Memory, OK

Out of Memory: Indicates that memory overrun has been encountered while adding custom enumeration for state text from field device to the user dictionary.

OK: Indicates that an addition of custom enumeration for state text from the field device to user dictionary is successful and state text from the device can be used.

Status Flags

 

B

False,

False,

False,

False

In Alarm, Fault, Overridden, Out of Service

Indicates the general status of the input object in BACnet terms and contains four independent states.

The four flags are:

In Alarm - False if the Event State attribute value is Normal; otherwise, the In Alarm flag is True. (Set only by BACnet Intrinsic Alarming.)

Fault - True (1) if the Reliability attribute is not reliable; otherwise, the Fault flag is False.

Overridden - Overridden flag is True if the Present Value is overridden from the hardware source level.

Out of Service - Out of Service flag is True if the Out of Service attribute value is True; otherwise, the Out of Service flag is False.

Use Remote Alarming

 

B,C,W

False

 

When the attribute Intrinsic Alarming Defined is set to True, determines where alarms for the object originate. If the remote integrated object contains attributes for originating alarms, then Use Remote Alarming defaults to True, causing the local mapper object to accept alarms from the remote integrated object that are routed to the NxE. If the remote integrated object does not contain attributes for originating alarms, then Use Remote Alarming defaults to False causing the local mapper object to originate alarms. When Use Remote Alarming is false, any alarms from the remote integrated object are ignored at the NxE. If the value of Use Remote Alarming is changed, a restart of the NxE may be required to assure correct operation. This attribute applies only to BACnet integrations.