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Mbus Driver Guide
MBus Manufacturers Specification Definition
This is the GUI interface for presentation of the current Manufacturers Specific Data elements for a particular meter.
Properties
-
Manu Spec Def Element xxx
: these properties contains the parameters required to decode a particular element.
The parameters are as follows;
-
Name
: A meaningful name given by the operator.
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Type
: The type of input selected from Integer, Signed Integer, Bit, BCD, Signed BCD, Real, Text and Hexadecimal.
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Offset
: The offset/byte count from the start of the Manufacturers Specific Data
-
Length
: The number of bytes for this particular element.
-
ByteMask
: The Byte Mask is used to mask off a section of the byte when carrrying out Bit operations. This is carried out before application of the BitMask and the "Or Flag".
-
BitMask
: The Bit Mask is used to mask off a bits of a byte when carrrying out Bit operations. This is carried out after the ByteMask has been "anded" with a byte.
If the OR Flag is not set then the result of this "anding" is compared to the BitMask, and if equal to it, will output a true.
-
Or Flag
: Following the ByteMask and BitMask "andings", if the Or Flag is set a true will be output if the result is non zero.
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