Title: +038=370.101-OE002T_02-Multical 801 Energimåler Kamstrup - Teknisk beskrivelse.pdf
12 Data communication12.1 MULTICAL 801 Data ProtocolInternal data communication in MULTICAL 801 is based on the Kamstrup Meter Protocol (KMP), which partly provides a quick and flexible reading structure and partly fulfils future requirements to data reliability.The KMP protocol is used in all Kamstrup consumption meters launched in 2006 and later. The protocol is used on the optical eye and via plug pins for the modules. Thus, modules with e.g. M-bus interface use the KMP protocol internally and the M-bus protocol externally.The KMP protocol has been constructed to handle point-to-point communication in a master/slave system (e.g. a bus system) and is used for data reading of Kamstrup energy meters.Software and parameter protection The meter’s software is implemented in a ROM and cannot be changed, neither deliberately nor by mistake. The legal parameters cannot be changed via data communication without breaking the legal seal and short circuiting the ”total programming lock”.