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iEM3100 / iEM3200 / iEM3300 series user manual Communications via M-Bus
DOCA0005EN-04 77
Variable data structure telegram information
Fixed data header
Data record header information
Data formats used by the meter (DIF bits 3-0)
NOTE: x in the hex value is determined by bits 7-4 of the DIF.
Data function types used by the meter (DIF bits 5-4)
Primary VIF used by the meter
NOTE: E denotes the extension bit; x in the hex value is determined by bits 7-4 of the VIF.
Primary VIFE codes used by the meter
The primary VIFE codes in the table below are used by the meter when the VIF equals FD hex
(1111 1101 bin).
NOTE: E denotes the extension bit; x in the hex value is determined by bits 7-4 of the VIFE.
Byte 1-4
Identification No.
Byte 5-6
Manufacturer
Byte 7
Version
Byte 8
Medium
Byte 9
Access No.
Byte 10
Status
Byte 11-12
Signature
Serial number of the meter in an
8-digit, BCD coded format
The serial number can also be
found on the meter front panel.
4CA3 hex =
Schneider Electric
Firmware version of the
communications board
10 = version 1.0
02 hex (electricity)
Counter of successful
access attempts
Indicates M-Bus
application errors
Not used
Format bin hex
No data 0000 x0
8-bit integer 0001 x1
16-bit integer 0010 x2
24-bit integer 0011 x3
32-bit integer 0100 x4
32-bit real 0101 x5
48-bit integer 0110 x6
64-bit integer 0111 x7
Variable length 1101 xD
Function type bin
Instantaneous 00
Maximum 01
Primary VIF bin hex Description
Energy E000 0011 x3 Wh with a resolution of 10
0
Power E000 1110 xE kW with a resolution of 10
3
Time point E110 1101 xD
Date and time in data type F, as detailed in the M-Bus
protocol documentation
Bus address E111 1010 xA
Data type C (unsigned integer), as detailed in the M-Bus
protocol documentation
Primary VIFE 1111 1101 FD Indicates that the first VIFE is a primary VIF extension
Manufacturer-specific VIFE 1111 1111 FF Indicates that the next VIFE is manufacturer specific
Primary VIFE codes bin hex Additional information
Manufacturer E000 1010 xA —
Model E000 1100 xC —
Voltage E100 1001 x9 Volts with a resolution of 10
0
Current E101 1100 xC Amps with a resolution of 10
0
Digital output E001 1010 xA —
Digital input E001 1011 xB —