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Communication with M-Bus
2CMC48001M0201
187
A43/A44
Revision: C
User Manual
Value Information
block (VIB)
Data
Manufacturer
data header
(MDH)
Code
Meaning
Length
1101
Variable Length
Variable
(ASCII)
1110
12 digit BCD
6
The following table shows the structure of the Data Information Field
Extension (DIFE)
Bit 7
Bit 6
Bit 5
Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Extension bit
Unit
Tariff
Storage No.
The following list explains the content of the DIFE:
•
Unit
is used for power and energy values show the type of power/energy.
It is also used to define the number of inputs/outputs and to specify sign
of offset when accessing event log data.
•
Tariff
is used for energy values to give tariff information.
•
Storage number
is set to 0 in values read to indicate momentary values.
Storage number bigger than 0 is used to indicate previously stored values,
i.e, values stored at a specific point of time in the past.
VIB follows a DIF or DIFE without extension bit. It contains one value
informa-tion field (VIF) and is in some cases expanded with up to 10 value
information field extensions (VIFE).
The following table shows the structure of the value informatiuon field (VIF):
Bit 7
6
5
4
3
2
1
0
Extension Bit
Value Information
Value information contains information about the value (unit, status, etc.,)
The extension bit is set when the next byte is a VIFE.
If VIF or VIFE = FFh the next VIFE is manufacturer specific. The manufacturer
specific VIFE has the same construction as a VIF. If the extension bit of the
man-ufacturer specific VIFE is set, and the VIFE is less than 1111 1000, the
next byte is a standard VIFE, otherwise it is the first data byte. If the extension
bit of the manufacturer specific VIFE is set and the VIFE is bigger than or equal
to 1111 1000, the next byte is an extension of manufacturer specific VIFE's.
The Data follows a VIF or a VIFE without the extension bit set.
The manufacturer data header (MDH) is either made up by the character 1Fh that
indicates that more data will follow in the next telegram, or by 0Fh indicating
the last telegram.
Summary of Contents for A43
Page 1: ...A43 A44 User Manual ...
Page 40: ...Meter Settings A43 A44 40 2CMC48001M0201 User Manual Revision C ...
Page 55: ...Technical Description 2CMC48001M0201 55 A43 A44 Revision C User Manual ...
Page 58: ...Technical Description A43 A44 58 2CMC48001M0201 User Manual Revision C ...
Page 61: ...Technical Description 2CMC48001M0201 61 A43 A44 Revision C User Manual ...
Page 75: ...Technical Description 2CMC48001M0201 75 A43 A44 Revision C User Manual ...
Page 84: ...Measurement Methods A43 A44 84 2CMC48001M0201 User Manual Revision C ...
Page 91: ...Measurement Methods 2CMC48001M0201 91 A43 A44 Revision C User Manual ...
Page 95: ...Measurement Methods 2CMC48001M0201 95 A43 A44 Revision C User Manual ...
Page 102: ...Communication with Modbus A43 A44 102 2CMC48001M0201 User Manual Revision C ...
Page 107: ...Communication with Modbus 2CMC48001M0201 107 A43 A44 Revision C User Manual ...
Page 131: ...Communication with Modbus 2CMC48001M0201 131 A43 A44 Revision C User Manual ...
Page 147: ...Communication with Modbus 2CMC48001M0201 147 A43 A44 Revision C User Manual ...
Page 154: ...Communication with Modbus A43 A44 154 2CMC48001M0201 User Manual Revision C ...
Page 157: ...Communication with Modbus 2CMC48001M0201 157 A43 A44 Revision C User Manual ...
Page 161: ...Communication with Modbus 2CMC48001M0201 161 A43 A44 Revision C User Manual ...
Page 166: ...Communication with Modbus A43 A44 166 2CMC48001M0201 User Manual Revision C ...
Page 180: ...Communication with M Bus A43 A44 180 2CMC48001M0201 User Manual Revision C ...
Page 182: ...Communication with M Bus A43 A44 182 2CMC48001M0201 User Manual Revision C ...
Page 188: ...Communication with M Bus A43 A44 188 2CMC48001M0201 User Manual Revision C ...
Page 195: ...Communication with M Bus 2CMC48001M0201 195 A43 A44 Revision C User Manual ...
Page 254: ...Communication with M Bus A43 A44 254 2CMC48001M0201 User Manual Revision C ...
Page 257: ...Communication with M Bus 2CMC48001M0201 257 A43 A44 Revision C User Manual ...