Echelon i.LON SmartServer 2.0 - Manual (Page 186)

i.LON SmartServer 2.0 Programmer’s Reference 12-14
• The SNVT_switch input data point is defined by a <DataPointFormat> element that has a “Dp
Type” attribute of “input”. The input data point referenced by <UCPTname> must have a
<UCPTformatDescription> property of #0000000000000000[0]. SNVT_switch and a
<UCPTnickName> property of Input0.
• The SNVT_lev_disc output data point to be translated is defined by a <DataPoint> element that
have a “Dp Type” attribute of “Output”. The output data point referenced by <UCPTname> must
have a <UCPTformatDescription> of #0000000000000000[0]. SNVT_lev_disc and a
<UCPTnickName> of Output0.
Each time a type translation is made, the SNVT_lev_desc output data point is assigned an enumeration
based on the current value and state stored in the SNVT_switch input data point, as described in the
following table:
SNVT_switch (input point) SNVT_lev_desc (output point)
value: any
state: 0 ST_NUL
value: 0.0
state: 1 ST_OFF
value: 0.1–25.0
state: 1 ST_LOW
value: 25.0–50.0
state: 1 ST_MED
value: 50.0–75.0
state: 1 ST_HIGH
value: 75.0–100.0
state: 1 ST_ON
value: >100.0
state: 1 ST_NUL
The following code demonstrates how to use the Set function to create a type translator that uses this
<UCPTtranslatorRule>:
<Set xmlns="http://wsdl.echelon.com/web_services_ns/ilon100/v4.0/message/">
<iLonItem>
<Item
xsi:type="UFPTtypeTranslator_Cfg">
<UCPTname>Net/LON/iLON App/Type Translator[11]</UCPTname>
<DataPoint dpType="Input">
<UCPTname>Net/LON/iLON App/VirtFb/nviSwitch</UCPTname>
<UCPTformatDescription>#0000000000000000[0].SNVT_switch </UCPTformatDescription>
<UCPTnickName>Input0</UCPTnickName>
</DataPoint>
<DataPoint
dpType="Output">
<UCPTname>Net/LON/iLON App/VirtFb/nvolevDisc</UCPTname>
<UCPTformatDescription>#0000000000000000[0].SNVT_lev_disc</UCPTformatDescription>
<UCPTnickName>Output0</UCPTnickName>
</DataPoint>
<UCPTtranslatorRule>SNVT_switch_TO_SNVT_lev_disc</UCPTtranslatorRule>
<SCPTdelayTime>0</SCPTdelayTime>
</Item>
</iLonItem>
</Set>
12.3.5 Using the Delete Function on a Type Translator
You can use the Delete function to delete a Type Translator. To delete a Type Translator, you provide
an <Item> element with a UFPTtypeTranslator_Cfg type that includes the <UCPTname> property of
the type translator to be deleted. The following code sample demonstrates how to use the Delete
function to delete a Type Translator: