dataType
Description: Item canonical data type
Data Type: string
One of the following valid values must be used:
-
float
-
int
-
unsignedInt
-
long
-
unsignedLong
-
double
-
unsginedShort
-
boolean
-
string
-
dateTime
-
anyType
-
decimal
-
byte
-
short
-
ArrayOfFloat
-
ArrayOfInt
-
ArrayOfUnsignedInt
-
ArrayOfLong
-
ArrayOfUnsignedLong
-
ArrayOfDouble
-
ArrayOfUnsginedShort
-
ArrayOfBoolean
-
ArrayOfString
-
ArrayOfDateTime
-
ArrayOfAnyType
-
ArrayOfDecimal
-
ArrayOfByte
-
ArrayOfShort
value
Description: Item canonical value
Example:
<value xsi:type="xsd:unsignedLong" xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">0</value>
accessRights
Description: Item access rights
Data Type: string
One of the following valid values must be used:
-
unknown
-
readable
-
writable
-
readWritable
scanRate
Description: This represents the fastest rate (in milliseconds) at which the server could obtain data from the underlying data source. This value generally represents the ‘best case’ or fastest RequestedSamplingRate which could be used if this item were subscribed to.
The accuracy of this value (the ability of the server to attain ‘best case’ performance) may be greatly affected by system load and other factors.
Data Type: float
euType
Description: Item EU type
Data Type: string
One of the following valid values must be used:
-
noEnum
-
analog
-
enumerated
euInfo
Description: If item euType is enumerated then euInfo will contain an array of strings which correspond to sequential numeric values (0, 1, 2, etc.)
Example:
<string>OPEN</string>
<string>CLOSE</string>
<string>IN TRANSIT</string>
etc.
Data Type: ArrayOfString
engineeringUnits
Description: EU units e.g. DEGC or GALLONS
Data Type: string
description
Description: Item description e.g. “Evaporator 6 Coolant Temp”
Data Type: string
highEU
Description: Present only for analog data. This represents the highest value likely to be obtained in normal operation and is intended for such use as automatically scaling a bargraph display.
e.g. 1400.0
Data Type: double
lowEU
Description: Present only for analog data. This represents the lowest value likely to be obtained in normal operation and is intended for such use as automatically scaling a bargraph display.
e.g. -200.0
Data Type: double
highIR
Description: High instrument range. Present only for analog data. This represents the highest value that can be returned by the instrument.
e.g. 9999.9
Data Type: double
lowIR
Description: Low instrument range. Present only for analog data. This represents the lowest value that can be returned by the instrument.
e.g. -9999.9
Data Type: double
closeLabel
Description: Contact close label. Present only for discrete data. This represents a string to be associated with this contact when it is in the closed (non-zero) state e.g. RUN, CLOSE, ENABLE, SAFE ,etc.
Data Type: string
openLabel
Description: Contact open label. Present only for ‘discrete' data. This represents a string to be associated with this contact when it is in the open (zero) state e.g. STOP, OPEN, DISABLE, UNSAFE ,etc.
Data Type: string
timeZone
Description: The time difference (in minutes) between the item’s UTC Timestamp and the local time in which the item value was obtained.
Data Type: unsignedInt
minimumValue
Description: The smallest positive value that can be stored in the item.
Data Type: Same as the data type for the item e.g.
<maximumValue xsi:type="xsd:unsignedLong" xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">18446744073709551614</maximumValue>
maximumValue
Description: The largest positive value that can be stored in the item.
Data Type: Same as the data type for the item e.g.
<minimumValue xsi:type="xsd:unsignedLong" xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">0</minimumValue>
valuePrecision
Description: The maximum precision that can be stored in the item.
Data Type: double