Title: DOCA0005EN-12.pdf
See “The following example distinguishes the M-Bus serial number for iEM3135/ iEM3235/iEM3335 meters.” on page 82 for information on obtaining and using the M-Bus tool.Variable data structure telegram informationFixed data headerByte 1-4 Identification No.Byte 5-6 ManufacturerByte 7 VersionByte 8 MediumByte 9 Access No.Byte 10 StatusByte 11-12 SignatureSerial number of the meter in an 8-digit, BCD coded formatThe serial number can also be found on the meter front panel.4CA3 hex = Schneider Elect ricFirmware version of the communications board10 = version 1.002 hex (electricity)Counter of successful access attemptsIndicates M-Bus application errorsNot usedDecoding secondary address and M-Bus serial numberEach M-Bus meter has a unique secondary address. The secondary address of a meter includes 4 parts: serial number, M-Bus firmware version, medium, and manufacturer.