nxa.AddExtSysCustomItem

Description

This function adds a new System Custom Item during the initialization phase of the server and returns its ID. Compared to a normal custom item, a system custom item can be placed anywhere in the item tree. In general, this function shall be used within the OnInitEvent callback only. Compared to the function nxa.AddSysCustomItem, the flags for Persistent, Historical, and Synchronziation can also be set.

Example

The following code creates an item within the branch NETx\XIO\My:

nxa.AddExtSysCustomItem("MyItem1", "Test", nxa.access.All, nxa.type.Integer, false, false, false, "°C", 0, 100, "\\", "XIO", "My")
image-20240611-063038.png

Signature

string nxa.AddExtSysCustomItem (string, string, nxa.access, nxa.type, bool, bool, bool, string, number, number, string, string, string, ..., string)

Parameters

Name

Type

Mandatory/Optional

Description

Name

Type

Mandatory/Optional

Description



string

M

name of the custom item



string

M

description of the custom item



nxa.access

M

access rights of the custom item



nxa.type

M

the data type of the custom item



bool

O

sets the persistent flag (optional)



bool

O

sets the historical flag (optional)



bool

O

sets the synchronize flag (optional)



string

O

engineering units of the custom item (optional)



number

O

minimum value that is allowed for the custom item (optional)



number

O

maximum value that is allowed for the custom item (optional)



string

O

delimiter that is used to build the item ID (optional)



string

O

path1 (optional)



string

O

path2 (optional)



...

 

 



string

O

pathN (optional)

Return

Type

Description

Type

Description

string

itemID of the new Custom Item