> For the complete documentation index, see [llms.txt](https://docs.caetron.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.caetron.io/product-documentation/helot-bms100-series-manual/indication-and-configuration.md).

# Indication & Configuration

<figure><img src="/files/tXjL18BJNOA8KIpoNIrL" alt=""><figcaption><p>BMS100 Series - Component Functions</p></figcaption></figure>

## Module Indicators

The module provides two visual indicators, allowing for quick visual identification of status and faults without the need for additional tools or adapters.

| YELLOW Indicator State | Module Status         |
| ---------------------- | --------------------- |
| OFF                    | NO POWER/MODULE FAULT |
| SOLID                  | POWERED/STANDBY       |
| FLASHING               | SHUNT(S) ACTIVE       |

| RED Indicator State | Fault                     |
| ------------------- | ------------------------- |
| OFF                 | NO FAULT                  |
| SOLID               | BATTERY FAULT             |
| FLASHING            | COMMUNICATION (CAN) FAULT |

## Module Addressing Scheme

The modules provide an eight (8) position rotary switch to set the internal CAN address.

Each rotary increment (0 to 7) increases the `module_address` of 300 by a factor of 10.

For example, a module with the rotary switch at 12 o'clock (position 0) would have a `module_address` of 300:

<pre><code><strong>module_address = 300 + 0 * 10 = 300
</strong></code></pre>

A module with the rotary switch at 9 o'clock (position 6) would have a `module_address` of 360:

```
module_address = 300 + 6 * 10 = 360
```

## Changing Address

If the module is powered, and the rotary switch position is changed the module will enter failsafe (YELLOW indicator off, RED indicator solid).&#x20;

This is implemented to ensure undetected dynamic CAN address changes during operation do not occur.

{% hint style="info" %}
To change address when the module is powered, adjust the rotary switch position, then press & release the reset button.
{% endhint %}

## Temperature Sensor Configuration

The modules contain an internal lookup table suitable for **10K B25/85 3435K** NTC thermistors, supporting a temperature range between -40C and 160C.

{% hint style="info" %}
CAETRON can offer custom lookup tables for other suitable temperature sensors if required.
{% endhint %}