====== Features ======

===== Highlights =====

  * **monitoring** of all important **battery** parameters of larger **UPS systems** in order to ensure operational reliability
  * **simple** and **fast installation** on existing or new UPS systems
  * very **reliable operation**
  * simple and intuitive **WEB user interface**
  * automatic **logging** of data and storage for a period of one year
  * easy **download of all displayed data** for further processing in **standard format** (csv)
  * easy connectivity to 3rd party SCADA, BMS, ... systems via standard **Modbus TCP/IP protocol**
===== System functionality =====

^  Data                                         ^^  Real-time data  ^  History data  ^  Alarming          ^^  Range                                                         ^  Accuracy         ^  Resolution  ^
^ :::                                           ^ :::                  ^ :::              ^ :::            ^  Low       ^  High  ^ :::                                                            ^ :::               ^ :::          ^
| **Per Battery (cell)**  | Voltage              |  ✔               |  ✔             |  ✔         |  ✔     |  2V battery...... 1.6 .. 2.6 V\\ 12V battery.... 7.5 .. 15.6 V |            ±0.2 % |      0.001 V |
| :::                     | Resistance           |  ✔               |  ✔             |            |  ✔     |                                                   0.1 .. 50 mΩ |  ±(1.5 % + 25 μΩ) |     0.001 mΩ |
| :::                     | Temperature          |  ✔               |  ✔             |            |  ✔     |                                                  -20 .. +85 °C |            ±0.5 % |       0.1 °C |
| :::                     | SOC                  |  ✔               |  ✔             |  ✔         |        |                                                     0 .. 100 % |                   |          1 % |
| :::                     | SOH                  |  ✔               |  ✔             |  ✔         |        |                                                     0 .. 100 % |                   |          1 % |
| **Per string**          | Voltage              |  ✔               |  ✔             |  ✔         |  ✔     |                                                    20 .. 800 V |           ± 0.5 % |       0.01 V |
| :::                     | Current              |  ✔               |  ✔             |  ✔         |  ✔     |                                                -1000 .. 1000 A |             ± 2 % |     0.01 ADC |
| :::                     | State                |  ✔               |                |            |        |   floating charge, \\ equalizing charge, \\ discharge, \\ idle |                   |              |
| :::                     | SOC                  |  ✔               |  ✔             |  ✔         |        |                                                     0 .. 100 % |                   |          1 % |
| :::                     | Balance              |  ✔               |  ✔             |            |        |                                                     0 .. 100 % |                   |       0.01 % |
| :::                     | Ambient temperature  |  ✔               |                |            |        |                                                  -40 .. +80 °C |          ± 0.5 °C |       0.1 °C |
| :::                     | Ambient hmidity      |  ✔               |                |            |        |                                                  0 .. 100 % RH |            ±3 %RH |      0.1 %RH |
| :::                     | Hall sensor state    |                  |                |  ✔                 ||                                                                |                   |              |
| **Per UPS**             | Voltage              |  ✔               |                |            |        |                                     Average of string voltages |                   |              |
| :::                     | Current              |  ✔               |                |            |        |                                         Sum of string currents |                   |              |
| :::                     | SOC                  |  ✔               |                |            |        |                                          Average of string SOC |                   |              |
===== System limitations =====

^   Device                                         ^^  Functionality                                                                                                                            ^  Limitations                                                                ^
| BM-GW     | BTMS IOT Agregator                    | Combines several BM-GW into one system                                                                                                    | Virtually unlimited number of BM-GW                                         |
| BM-GW     | BTMS IOT Gateway                      | Combines several BM-SS into UPS\\ WEB interface\\ Data collection and logging                                                             | Up to 32 battery strings\\ Strings arranged arbitrarily in up to 32 UPS-es  |
| BM-SS     | BTMS String master                    | Combines several BM-CS into string                                                                                                        | Up to 120 batteries / string                                                |
| BM-HS     | BTMS Hall sensor                      | Measures string current                                                                                                                   | One per string                                                              |
| BM-CS     | BTMS Cell sensor                      | Measures battery                                                                                                                          | One per battery                                                             |
| BM-MC     | BTMS Master controller                | Enables the connection of BM-LC, BM-TH and BM-HMI                                                                                         | One per BM-GW                                                               |
| BM-LC     | BTMS IO expansion module              | Connection of auxiliary sensors (leakage, fire, ..)\\ Connection of auxiliary alarm devices (string disconnection, warning light, siren)  | Up to 32 IOs\\ (Up to 4 per BM-MC)                                          |
| BM-TH     | BTMS Temperature and humidity sensor  | Ambient temperature and humidity measurement                                                                                              | One per string                                                              |
| BM-HMI    | BTMS Human-Machine Interfaces         | Local inspection of data from UPS, strings and batteries                                                                                  | One per BM-MC                                                               |