Lighting Input object (LgtIn)
The Lighting Input (LgtIn) object type defines a BACnet Object that represents standardized characteristics of a lighting input command sensed by a hardwired or networked Field Device. Dimming input commands requires complex lighting input command values which may not be modeled by a simple Analog Input, Binary Input, or Multistate Input Object. LgtIn object properties are:
✳ Indicates a Siemens proprietary property.
Present value |
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'Present value' indicates the present value of the virtual variable. | ||
Property ID: 85 | ||
Reliability |
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'Reliability' indicates whether the property value 'Present value' is reliable. If the 'Present value' is not reliable, the property 'Reliability' indicates the cause of the fault and the bit "Fault" of the state indication is set to 'True'. In a normal case, the property 'Reliability' is set to "No fault". | ||
Property ID: 103 | ||
Out of service |
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"Out of service" allows decoupling the object from being modified by a control program, system program or peripheral device.
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Property ID: 81 | ||
Field device type |
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"Field device type" is a text description of the physical peripheral device connected to the input or output. Typically contains the product part number of the connected device. To be completed by the engineer. Is not used by the data acquisition. Example: QAX3.P84 (room unit) - Entrance | ||
Lighting state ✳ |
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"Lighting state" allows a respective dimming sensor to indicate the on/off-state of a lighting actuator. "Lighting state":
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Lighting value ✳ |
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"Lighting value" allows a respective dimming sensor to indicate the actual lighting value (0…100%) of a lighting actuator. "Lighting value":
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I/O address ✳ |
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"I/O address" identifies and documents the data source, and facilitates configuring, modifying, and querying the assignment in a standardized way. The content of "I/O address" is technology-specific and includes:
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Commissioning state ✳ |
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"Commissioning state" is an enumerated value representing the commissioning state (Not checked, Check failed, Check successful) of the BACnet object. Typically set during commissioning by means of engineering and commissioning function (for example, Automation Building Tool or installer tool). It can be inspected by engineering and commissioning, or operation and monitoring functions, and used in commissioning reports. | ||
Commissioning information ✳ |
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"Commissioning information" indicates additional, human-readable information about the BACnet object's commissioning state. For example, "cable defect". Typically set during commissioning by means of engineering and commissioning function (for example, Automation Building Tool or installer tool). It can be inspected by engineering and commissioning, or operation and monitoring functions, and used in commissioning reports. | ||
Object access level ✳ |
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"Object access level" defines the instance-specific object access level. "Object access level" is used for generic filtering and processing an object by a client application.
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Access level | Name | Description | ||
7 | Basic operation | Access to BACnet objects and properties for a room user e.g. data points visible on a room unit. | ||
6 | Standard operation | Access to BACnet objects and properties for standard operation and monitoring (daily business), .e.g. room and plant information on a management station. | ||
5 | Extended operation | Access to BACnet objects and properties for extended operation and monitoring such as network and device objects. All I/Os are visible | ||
4 | Administrator | Not used by HQ solutions yet. | ||
3 | Basic service | Access to BACnet objects and properties used for commissioning, e.g. configuration value extensions, I/O extensions, etc. | ||
2 | Extended service | Not used by HQ solutions yet. | ||
1 | Internal | Access to all BACnet objects and properties for very specialized actions e.g. during development. | ||
Object usage ✳ |
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"Object usage" indicates whether the object is used or unused. The "Object usage" property can hide or display respective objects and their functionality in a client. For example, room functionality can be marked for flexible room arrangements as used/unused. An object that is marked as unused behaves as if the object does not exist. | ||
Property ID: 4930 | ||
Description |
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"Description" is a string of printable characters whose content is not restricted. | ||
Object name |
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"Object name" represents a name for the object that is unique internetwork-wide. The minimum length of the string is one character. The set of characters used in the "Object name" are restricted to printable characters. | ||
Comment |
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A string of printable characters whose content is not restricted. | ||