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Table of Contents
Summary of Contents for Relay RelAir R2M HOME
- Page 1 RelAir R2M PRO / HOME Wireless M-Bus to Wired M-Bus Gateways User Manual...
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Page 2: Table Of Contents
4 Technical Data ........................13 4.1 General Data ......................... 13 4.2 Housing RelAir R2M PRO ..................... 13 4.3 Housing RelAir R2M HOME ..................13 4.4 Power Supply ........................ 13 4.5 Wireless M-Bus Interface ....................13 4.6 Wired M-Bus Interface ....................14 4.7 Ordering Information ...................... -
Page 3: Functional Description
RELAIR R2M 1 Functional description The RelAir R2M allows you to integrate up to 63 Wireless M-Bus meters into your existing M- Bus installation. For this purpose the OMS-compliant gateway stores the meter data and answers a request by the M-Bus Master with the last answer telegram. The Gateway receives devices with wireless M-Bus interfaces compliant with EN13757-4 at 868 MHz in S1, T1 or C1 mode and is OMS compliant. -
Page 4: Installation And Commissioning
RELAIR R2M 2 Installation and commissioning 2.1 Mounting and cabling RelAir Pro The bottom part of case is first attached to the wall with the terminals arranged downward. Please use 2 screws mounted through the outside drillings at the case. The cable for the M-Bus interface are led through the self-sealing cable glands in the housing. -
Page 5: Mounting And Cabling Relair Home
RELAIR R2M This figure shows the assembled printed circuit board including the connection terminals for the M-Bus line (s) and the mini USB socket. 2.2 Mounting and cabling RelAir Home The housing must first be opened for assembly. To do this, push the tip of a slotted screwdriver one after the other into the two openings on the lower side so that the locking mechanism of the cover is released from the mounting plate. - Page 6 (60 mm) The RelAir R2M Home can either be operated via the USB interface on the outside of the housing or in an M-Bus system via the internal M-Bus interface (slave). In this case, the housing must be opened to connect the cable.
- Page 7 RELAIR R2M Now connect the M-Bus cable to one of the two removable terminals. The printed circuit board with the terminals can be seen in the picture opposite. The cable is then led back through the lower semicircular notch of the circuit board. Then insert the PCB at the bottom and tilt it up until it clicks into place.
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Page 8: Parameterization And Commissioning
The parameterization of the RelAir R2M is done with the help of the free software RelAirConf, which you will find on our CD "Tools & Docs" or on our homepage www.relay.de. You can either use the USB interface with a mini-USB cable or directly the M-Bus interface. Please note that the RelAir R2M gateways cannot be used without parameterization. -
Page 9: Bus Telegrams Of Registered Meters
RELAIR R2M 3 M-Bus Telegrams of registered meters The RelAir R2M simulates all counters registered in the whitelist. They can either be selected and read out via their primary address (if configured with the parameterization software RelAirConf) or secondary address. The gateway always keeps the last received wMBus telegram from the registered meters ready. - Page 10 RELAIR R2M a) Empty telegram The gateway returns a telegram without data records if, after registering in the whitelist, no telegram has been received from the registered meter: RSP_UD: M-Bus empty telegram Example Byte No. Name Content Bytes [hex] Start Start-Byte L-Field Telegram length...
- Page 11 RELAIR R2M b) Telegram with wM-Bus container If the telegram cannot be decrypted despite a registered or because of a missing AES key, the telegram is packed into a wM-Bus container data record and made available: RSP_UD: Example Byte No. Name Content Bytes [hex]...
- Page 12 RELAIR R2M c) Decrypted Telegram In the case that a registered meter sends an unencrypted telegram or the correct AES128 key is stored, the data records contained in the wireless telegram are simply copied to the wired M-Bus telegram. However, all uniquely identifiable idle fillers (2Fh) are removed: RSP_UD: Example Byte No.
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Page 13: Technical Data
W x L x H (93 x 93 x 55) mm Protective class IP54, IP65 is possible if the cable entry is done carefully 4.3 Housing RelAir R2M HOME Mounting Wall mounting or mounting on an in-wall box (60 mm) Material... -
Page 14: Wired M-Bus Interface
Addressing - Primary address (factory default = 0, configurable with RelAirConf software) - Secondary address RelAir R2M HOME: ID = 1xxxxxxx, with xxxxxxx = serial number RelAir R2M PRO: ID = 2xxxxxxx, with xxxxxxx = serial number RelAir R2M PROX: ID = 3xxxxxxx, with xxxxxxx = serial number 4.7 Ordering Information... -
Page 15: Ce Declaration
RELAIR R2M 4.8 CE Declaration User Manual RelAir R2M · 07/2018 · VERSION 1.1... - Page 16 RELAIR R2M User Manual RelAir R2M · 07/2018 · VERSION 1.1...