Communication with meters Landis ULTRAHEAT

- PmMBus - Driver for communication by the M-BUS protocol.
For easy integration of this driver into the application it is handy to use:

- Reading of measured values:
There are following variables on the "Data-received" tab: Header of M-BUS message ActualityDuration (actuality duration [sec]), ResponseDuration (response duration [sec]), Energy (accumulated energy [GJ]), Volume (accumulated volume [m3]), Power (instantaneous power [kW]), Flow (instantaneous flow [m3/h]), TemperForward (Forward temperature [°C]), TemperReturn (Return temperature [°C]), TemperDiff (Temperature difference [°C]), VolumeMem1 (accumulated volume [m3] from last year), EnergyMem1 (accumulated energy [GJ] from last year), FabricNr (Meter fabric number), RespDurationTar1 (response duration [sec], Tariff=1), PowerMaxTar1 (maximum power [kW], Tariff=1), PowerMaxMem1Tar1 (maximum power [kW] from last year, Tariff=1), FlowMaxTar1 (maximum flow [m3/h]), Tariff=1), TemperForMaxTar1 (maximum Forward temperature [°C], Tariff=1), TemperRetMaxTar1 (maximum Return temperature [°C], Tariff=1), OnTime (number of days), OnTimeErr (number of days in error), OnTimeErrMem1 (number of days in error from last year), DataReading (date and time of reading, year is not available), EnergyTar2 / EnergyTar3 / EnergyTar4 (accumulated energy [GJ], Tariff=2/3/4), EnergyMem1Tar2 / EnergyMem1Tar3 / EnergyMem1Tar4 (accumulated energy [GJ] from last year, Tariff=2/3/4), TemperForMaxMem2Tar1 (maximum Forward temperature [°C], 1st value from last year, Tariff=1), TemperRetMaxMem2Tar1 (maximum Return temperature [°C], 1st value from last year, Tariff=1), FlowMaxMem2Tar1 (maximum flow [m3/h], 1st value from last year, Tariff=1), PowerMaxMem2Tar1 (maximum power [kW], 1st value from last year, Tariff=1), OnTimeErrMem2 (number of days in error, 1st value from last year), EnergyMem2 / EnergyMem2Tar2 / EnergyMem2Tar3 / EnergyMem2Tar4 (accumulated energy [GJ], 1st value from last year, Tariff=0/2/3/4), VolumeMem2 (accumulated volume [m3], 1st value from last year), Date (meter date and time), Microprogram (version), D0 (extended byte, perhaps always 0), D1 (extended byte, perhaps always 0), D2 (extended byte, bit 0=1=preadmonition, bit 7=0/1=installation in return/forward pipeline).

- Setting of date and time:
By this simple message it can be set the time in the meter. Date and time is entered in the Date variable on the "Data-sent" tab.