WMR-IoT is an USB-based wireless m-bus receiver/repeater, intended to collect data from various devices,
working in modes T, S or C according to wireless m-bus standard (EN13757-4).
This device has simple function – collect data from every wireless meter in range,
and show the user valid data, signal strenght and additional information about meters read.
Device is powered directly from an USB port and works with FTDI-based chip.
It is small, simple and ideal for walk-by readings or just for gathering info for a given wireless
network.
Data is visualized in free Gineers software - versions for Windows and Android. It can decode telegrams, decrypt AES-128 Mode 4 and 5 (CBC) encrypted data, import/export
data by user-created template and some other usefull functions. Windows version also supports simple database with records for read meters in the past.
For more detailed overview of the software and WRM-IoT please take a look at WRM-IoT software User Manual.
user
manual WMR-IoT v2
Software GinWalk
| RF band |
868 - 870 MHz, 12 channels |
| wireless m-bus modes |
T1, T2, S1, S2, T1+C |
| interface |
USB 1.1/2.0/3.0 (FTDI drivers, virtual COM port) |
| serial port bps |
19200 bps, None (optional 115200) |
| power supply |
5 Vdc/100mA |
| power consumption @ 5Vdc |
< 0.2W |
| antenna |
quarter-wave 868 MHz |
| work temperature |
from -20° C to +50° C |
| storage temperature |
from -50° C to +85° C |
| humidity |
40 ÷ 90 % |
| dimensions (HxWxD, w/o antenna), mm |
50/25/15 mm |
| protection class |
IP20 |
| own weight |
25 g |
WMR-IoT starts work immediately after plugged in USB port or other power supply is turned on.
Device has embedded FTDI chip, so in order to work correctly user should install proper FTDI drivers (FT23X drivers).
If drivers are installed correctly then user will see WMR-IoT in its Device Manager as serial port (USB-to-232).
All other things are made by Gineers software, provided with each WMR-IoT device. Software is capable of
changing device wireless mode, see signal strength, decrypt encrypted meters (of course - if key is provided), export
data, save in simple database and so on.
To start reading particular network of wireless devices two main steps that must be done:
- set WMR-IoT in desired wireless m-bus mode through software (by default mode is T+C)
- load file with meter serial numbers and AES-128 keys (if meters are encrypted)
- start read/search immediately for meters, without loading them from a file
Meters can only be read once or continously - it depends on the user. After all meters are read, there are two main things
that can be done with the data:
- Data can be exported in CSV file. User can create custom templates how the data will be exported;
- Data can be also saved in a local, simple database for Windows type of software. It is structure based, but later user can make reports and review
older readings (and export them again)
For more information please refer to WMR-IoT Software manual or contact with us.
