4 using the delete function on modbus data points, Using the delete function on modbus data points – Echelon i.LON SmartServer 2.0 User Manual

Page 266

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i.LON SmartServer 2.0 Programmer’s Reference

15-17

You can set multiple Modbus data points with a single Set message. However, you should not attempt
to create or write to more than 100 Modbus data points with a single call to the Set function. The
following example demonstrates how to create a new Modbus data point.

Request (add a Modbus data point to a Modbus device)

<Set xmlns="http://wsdl.echelon.com/web_services_ns/ilon100/v4.0/message/">
<iLonItem>
<UCPTfaultCount>0</UCPTfaultCount>
<Item

xsi:type="MOD_Dp_Cfg">

<UCPTname>Net/Modbus

Channel/LAE_LCD15_2/VirtFb/T1_1</UCPTname>

<UCPTformatDescription>#8000010128000000[4].UNVT_signed_long#dec</UCPTformatDescription>
<UCPTbaseType

LonFormat="UCPTbaseType">BT_SIGNED_LONG</UCPTbaseType>

<UCPTmodbusTable

LonFormat="UCPTmodbusTable">MTT_HR</UCPTmodbusTable>

Response

<Item>

<UCPTname>Net/Modbus

Channel/LAE_LCD15_2/VirtFb/T1_1</UCPTname>

</Item>

</iLonItem>
</SetResponse>

15.4.4

Using the Delete Function on Modbus Data Points

You can use the Delete function to delete a Modbus data point on the SmartServer. The Delete
function takes an <Item> element with a MOD_Dp_Cfg type as its input. The <Item> element only
needs to include the Modbus data point’s <UCPTname> property in the Delete Request as
demonstrated in the following code sample:

Request

<Delete xmlns="http://wsdl.echelon.com/web_services_ns/ilon100/v4.0/message/">
<iLonItem>
<Item

xsi:type="MOD_Dp_Cfg">

<UCPTname> Net/Modbus Channel/LAE_LCD15_2/VirtFb/T1_1</UCPTname>

</Item>

</iLonItem>
</Delete>

Response

<Item>
<UCPTname>Net/Modbus

Channel/LAE_LCD15_2/VirtFb/T1_1</UCPTname>

</Item>
</iLonItem>
</Delete>

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