These notes give examples and demonstrate how to set up the Manufacturers Specific Data for a meter..
Some meter manufacturers make use of the MBus feature that allows them to incorporate their own data formats within the MBus data stream. The format of the data has to be obtained from the meter manufacturers specification documents. This driver has the capability of handling the following formats.
The location and length of each MSD data element is also required to be input and this information should also be obtained from the meter manufacturers specification.
The technique used in this driver is to use the Manu Spec Def Manager and Manu Spec Def Element Manager to construct the individual element definitions. These definitions are then applied to a control points proxy extension to enable decoding of the input data stream.
Name | Nibble | Nibble |
---|---|---|
Customer No | 10**1 | 10 |
Customer No | 10**3 | 10**2 |
Customer No | 10**5 | 10**4 |
Customer No | 10**7 | 10**6 |
Customer No | 10**9 | 10**8 |
Customer No | 10**11 | 10**10 |
Peak Power | 10**1 | 10 |
Peak Power | 10**3 | 10**2 |
Peak Power | 10**5 | 10**4 |
Peak Power | 10**7 | 10**6 |
Byte | Byte | Name |
---|---|---|
01h | 04h | Firmware version 04.01 |
00h | Reserved | |
01h | Information byte | |
Normal readout mode = x0 | ||
Fast readout mode = x1 | ||
Previous months readout mode = x8 | ||
EEPROM readout mode = x9 | ||
Info telegram readout mode = xA | ||
G4 Compatible mode = 0y | ||
G2 Compatible mode = 1y | ||
Fixed Length Frame = 2y |
In the first extract, the data is in BCD format and is 6 bytes long for the 'Customer No' and 4 bytes long for the 'Peak Power'. The second extract data is more complex and has the 'Firmware version' as a BCD value 2 bytes long, 'Reserved' as an integer 1 byte long and the remaining elements in Bit formats.
In the case of Bit operations there are 3 additional parameters to be entered.
The resultant number type is of a Boolean nature.
Having set up the Manufacturers Specification details, the process for incorporating into the Points data can proceed
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