121 MBus/Lon 10 One to One M-BUS/LON Converter
121 MBus/Lon 10 Converter
Standard version of module cooperates with the following devices: o
Landis & Gyr WSD2C-1.50 heatmeter
o
Siemens Ultraheat 2WR5 heatmeter
o
Danfoss Infocal 5 heatmeter
o
Actaris CF Echo heatmeter
o
Actaris CF Echo II heatmeter
o
Actaris CF-Max heatmeter
o
Actaris CF50 heatmeter
o
Sensus PolluCom EX heatmeter
o
Sensus PolluStat E X heatmeter
o
Sensus PolluTherm heatmeter
o
Siemens RVD235 controller
o
Kamstrup Multical 401
Communicates with single slave device
Application software can be adapted to customer requirements
Description 121 MBus/Lon 10 module is an universal converter between LonWorks® Network and devices with M-BUS interface. This module can be used in the applications where the devices like heatmeters have to be connected to LonWorks® Network. The 121 MBus/Lon 10 module works as M-BUS master device.
Technical Data Processor Type Clock frequency Identification
Updated: September 11th, 2009
Neuron® Chip 3150 10 MHz Service pin or manual entry
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121 MBus/Lon 10 One to One M-BUS/LON Converter Network interface Transceiver Transmission speed LON network distance Number of nodes per channel Polarity sensitivity Protocol Network termination
FTT-10A 78 Kb/s 2700 m – bus topology 500 m – free topology Max 64 No LonTalk® Depends on application (bus or free topology)
Power supply Voltage Power consumption
24 V AC 0,6 VA typical 2,0 VA max
Environment conditions Operating temperature Non-operating temperature Relative humidity
0..+40 °C -10..+70 °C 90 % max, non-condensing
M-BUS interface Speed Frame format Voltage on M-BUS terminals Number of SLAVE devices Max. load of M-BUS interface Other
300 bps 8e1 (8 data bits, 1 stop bit, even parity) 26 V DC ± 1 V 1 20 mA DC Short circuit protection
Service functions Service LED Power LED
TxD LED RxD LED Service push-button Reset push-button
Yellow LED – indicates state of the node. Red LED – indicates state of power. Flashing power LED indicates that the module is signaled by network management tool (Wink function). Red LED – flashing LED indicates transmitting data to heatmeter Green LED – flashing LED indicates receiving data from heatmeter Used to send Service message Used to reset the module Service and Reset push-buttons are accessible through small holes on the front of the module
Housing Housing type Mounting Color Dimensions Terminals
Updated: September 11th, 2009
Z-102, polystyrene 35 mm DIN rail Light grey 54 x 90 x 65 mm Screw terminals, raster 5 mm, wires 1,5 mm2
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121 MBus/Lon 10 One to One M-BUS/LON Converter
LON Network Interface LON Network Interface of the 121 MBus/Lon 10 module is shown on figure below.
Standard list of network variables for heatmeter: Node Object SNVT_obj_request SNVT_obj_status
nviRequest nvoStatus
- Node Object request - Node Object status
Virtual Functional SNVT_elec_whr_f SNVT_vol_f SNVT_power_f SNVT_flow_f
Block nvoEnergy[0] nvoVolume[0] nvoPower[0] nvoVolumeFlow [0]
-
Updated: September 11th, 2009
heat energy [Wh] volume [l] power [W] volume flow [l/s]
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121 MBus/Lon 10 One to One M-BUS/LON Converter SNVT_temp_f SNVT_temp_f SNVT_temp_f SNVT_count_f SNVT_count_32
nvoSupplyTemp[0] nvoReturnTemp[0] nvoDiffTemp[0] nvoOnTime[0] nvoSerialNumber[0]
-
supply temperature [°C] return temperature [°C] temperature difference [°C] heatmeter operating time [s] serial number
SNVT_time_min
nciReadingTime
- time between consecutive readouts [min]
Time between readouts can be set by nciReadingTime network variable. Available range is from 1 to 65534 minutes. When nciReadingTime is set to zero, reading of heatmeter will be stopped.
Installation Guidelines 1. M-BUS transmission speed of heatmeter must be set to 300 bps. 2. Heatmeter M-BUS address can be any because 121 MBus/Lon 10 converter uses broadcast address for data request. 3. Default value of nciReadingTime network variable is 1 minute. If heatmeter is battery powered, it is strongly recommended to increase this value (e.g. to 60 minutes) because frequent readout of heatmeter may cause exhaustion of the battery.
Updated: September 11th, 2009
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121 MBus/Lon 10 One to One M-BUS/LON Converter
Wiring diagram
Updated: September 11th, 2009
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121 MBus/Lon 10 One to One M-BUS/LON Converter
Module dimensions
Firmware version Default firmware version: MBusLON121_for_Heatmeters
ZDANIA Sp. z o. o. ul. Królowej Jadwigi 268 PL 30-218 Kraków Poland http://www.zdania.com.pl/ Tel: +48 12 638-05-67 Tel/Fax: +48 12 638-05-77 e-mail:
[email protected] ®
®
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®
Echelon , LonWorks , LonMark and LonTalk are registered trademarks of Echelon Corporation. Updated: September 11th, 2009
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