317
the Power Meter. Learning more about the measurement data, please refer to
the Data Address Table. In this function, the qualier could be selected contain
0X00, 0X01, 0X06.
The qualier 0X00 refers that there two bytes called Range followed by, one is
the start address want to request, the second is the stop address, this Range
would be from 0 to 255.
The qualier 0X01 indicates that the followed Range there are four bytes, the
rst two is the Start Address want to be request, the last two is the Stop Address,
the two bytes consist of two 8-bit binary number , the low byte rst, that the
address Range would be from 0 to 65535.
The qualifier 0X06 means read All data from the object with its respective
variations which would be list in the queue.
More about the message please see Message Layout, the detailed examples.
The Direct Operate function ( 0X05 )
The function is selects and sets or operates the specied outputs, the status of
the control points will be responded. Here this function is intended for resetting
the energy counters and the demand counters. These actions are mapped to
Objects 12 Variations 1, point 1 and point 2, there are seen as a control relay. The
relay must be operated On in 0 millisecond , and released O in 1 millisecond
.The qualiers 0X17 and 0X28 are supported for writing the energy reset and
demand reset. The examples will be shown in Message Layout.
The Direct Operate function ( 0X06 )
The function is selects and sets or operates the specified outputs but do not
send a response to the request. Here this function is intended for switching the
DNP3.0 protocol to Modbus protocol using the same communication port. This
switching is seen as a control relay mapped into Object 12 Variation 1 and point