OverviewAll product unitsProduct unitRadio ModulesProduct groupRadio ModulesProduct familyMeteringProduct seriesMetis-I & EV-Kits

Metis-I & EV-Kits EXTENDED

Radio Module 868 MHz wM-BUS (AMB8426-M)

Metis-I & EV-Kits

Characteristics

  • Low-cost radio module 868 MHz
  • Wireless M-BUS EN13757-4:2013 standard
  • OMS (Open Metering System) supported
  • Range up to 700 m line of sight
  • Small size: 17 x 27 x 4.0 mm
  • Low-power functions (Wake-On-Radio)
  • Easy switching between operating modes S, T, C
  • Adjustable RF data rates
  • Communication via UART/SPI Interface
  • Encryption AES-128
  • Available on Tape & Reel for SMT mounting
  • AMB8465-M Wireless M-BUS USB Adapter available
  • Pin-to-pin compatible with Mimas-I and Metis-II
  • ACC Software - PC Tool to configure and evaluate the module
  • Wireless Connectivity SDK

See what the firmware developed by Würth Elektronik can do - the WE-ProWare

Products

All
Metis-I
EV-Kits
Order Code Data­sheet Simu­lation Man­ual Downloads StatusDescriptionFrequency Range
(MHz)
dLoS
(m)
PTx, 50 Ω
(dBm)
Rxsens, 50 Ω
(dBm)
VDD min.
(V)
VDD max.
(V)
Rb max.
(kbps)
L
(mm)
W
(mm)
H
(mm)
Radio ModuleAntennaUSB Radio StickEvaluation Kit Offer
2605049283001
PDF Active i| Production is active. Expected lifetime: >10 years. EV-Kit Metis-I2605041183000
Hyperion-I
2605041183000SPEC
PDF5 files Active i| Production is active. Expected lifetime: >10 years. Metis-I 868.3 - 869.525 700 11 -103 2.2 3.6 100 17 27 3.6Hyperion-I
Hyperion-II
2605056083001
2605049283001
Order Code Data­sheet Simu­lation
2605049283001
2605041183000SPEC
Offer
Order Code Data­sheet Simu­lation Man­ual Downloads StatusDescriptionFrequency Range
(MHz)
dLoS
(m)
PTx, 50 Ω
(dBm)
Rxsens, 50 Ω
(dBm)
VDD min.
(V)
VDD max.
(V)
Rb max.
(kbps)
L
(mm)
W
(mm)
H
(mm)
Radio ModuleAntennaUSB Radio StickEvaluation Kit Offer

Software Downloads

Wireless Connectivity SDK

The aim of the Wireless Connectivity Software Development Kit (SDK) is to minimize the effort required on customer side to enable his host MCU to communicate with Würth Elektronik eiSos radio modules. It contains the implementation of all available commands in pure C-code. In order to integrate any Würth Elektronik eiSos wireless module, the user has to simply port the corresponding C-code to his host processor. This significantly reduces the time needed for developing the software interface to the radio module.

Download now on GitHub

ACC Tool

The "ACC V3" is a tool to update and configure certain Würth Elektronik eiSos modules. The supported features will include the search and upload of new firmwares as well as the modification of the available configuration parameters. It allows full user control over all supported products, as in the range of the producer’s intentions, always referring to the respective manual of the connected module.

Due to current export legal restrictions, we are required to control the provision of software. To download the software, please contact our technical support or your local sales representative directly. Thank you for your understanding.

Wireless M-Bus

Wireless Meter Bus (wM-BUS) is the extension of the meter Bus (M-BUS) with a wireless protocol and role scheme for handling communication over a standardized wireless communication interface between meters and data loggers – so called smart meter gateways (SMGW). This scheme is specified by the European standard EN 13757 and its sub-standards. The motivation of this standard is to allow an automated measuring and processing of data, track the usage of resources and to optimize provisioning in order to create an “Advanced Metering Infrastructure” (AMI).

Such Smart grid / meter devices are typically battery operated and in need for a long range and robust wireless communication. This is the reason for using the Sub GHz frequencies in the free ISM Bands. EN13757-4 is specifying radio options in the 169 MHz, 434 MHz or 868 MHz band, regarding to the region.

User Application

Advantages for the Customers

  • „Almost live“ data access on his currently use of resources including a “live” cost estimation instead of yearly billing 
  • Comparison on a day-by-day basis when data is available  
  • No costs for the manual readout, no huddle with a yearly appointment for manual meter readout person  
  • Secure due to encryption, only the owner of the data knows the key required for decrypting the messages of the meters  
  • Several metering providers can share a single Smart meter Gateway (water, gas, electricity, heat cost, …)

Disadvantages for the Customers

  • High initial costs: Smart meter gateway and meters with wireless interface
  • Battery lifetime requires exchanging devices each 7 - 10 years in case of battery operated devices – due to security reasons “just” changing the battery is often prevented

Videos

Würth Elektronik Webinar: „wireless M-Bus“. What do I have to know about?

Videos

Manni Talks- Unboxing the Evaluation Kit