readAsync

Reads data from an ADS device.

readAsync(
    nIndexGroup, 
    nIndexOffset, 
    cbLen, 
    pCallback, 
    userState 
  );

Parameters

nIndexGroup	Type: Number The indexGroup
nIndexOffset	Type: Number The indexOffset
cbLen	Type: Number The length of read data.
pCallback	Type: Function pointer The callback function for asynchronous AJAX requests. Function pointer signature: function( TcAdsWebService.Response, userState) If successfull, the TcAdsWebService.Response.reader property contains the data in the order in which the data was requested.
userState	Type: Every User data which will be passed through.

Returns

This function will return nothing. An TcAdsWebService.Response object is returned by calling the callback function which was set by use of the pCallback parameter.
If successfull, the TcAdsWebService.Response.reader property contains the data in the order in which the data was requested.