JSON Format for Data Points

A JSON object describing a data point has the following syntax:

{
  "@Skill.CIFX.DataPoint": {
    "name": "signal 1",
    "UUID": "8dc020b3-6db4-4cfd-ad71-76bffc184956",
    "dataType": "bit",
    "input": {
      ...
    },
    "output": {
      ...
    }
  }
}

Object Members

name	A string value containing the name of the data point. The name is used to construct the data point’s primary key.
UUID	A string value containing the unique UUID of the data point.
ACL	An optional JSON object containing the element ACL of the data point. The format of the object is described under JSON Format for ACLs in the Xentara user manual.
dataType	The type of the data point’s value. The value must be one of supported data types.
input	A JSON object defining the memory location in a Hilscher cifX communication channel’s input memory area which the data point’s value must be read from. When omitted, the data point will not be readable. The members of the input object are described below.
output	A JSON object defining the memory location in a Hilscher cifX communication channel’s output memory area which the data point’s value must be written to. When omitted, the data point will not be writable. The members of the output object are described below.

Members of Input/Output Memory Location Objects

The JSON object describing an input/output memory location has the following members:

"area": 0,
"offset": 4,
"bitNumber": 0

Object Members

area	The cifX communication channel’s memory area number.
offset	The offset in the memory area.
bitNumber	The bit number on the value. This parameter is required for data points of “bit” type and must not be configured for other data types.