# Understanding Bits and Integers in iNELS Design Manager for Building Automation
## **System Bits: What Are They?**
* **Bits** store **digital actions**, like turning something on or off.
* These actions are similar to those for **digital outputs**.
* You can explore and manage them in the **Function Manager -> Function type -> System**
## **System Integers: What Are They?**
* **Integers** store **numeric values** (like temperature or brightness levels).
* They trigger specific actions and can be manipulated in various ways.
### Actions for System Integers
Here’s a breakdown of common actions related to System Integers:
1. **System int change**
* Triggered when the integer's value changes.
2. **System int change up**
* Triggered when the value is increased.
3. **System int change down**
* Triggered when the value is decreased.
4. **Permanent Actions**
* Triggered continuously by the central unit (without any user input).
### Functions for System Integers
These are the main functions you can use with System Integers:
* **System int – Increment**
* Increases the integer by a set value.
* You can customize the **Inc/Dec Step** to control how much the value increases, with a range up to a 32-bit integer.
* **System int – Decrement**
* Decreases the integer by a set value, using the same **Inc/Dec Step** field.
* **System int – Copy**
* Copies a value from various devices (e.g., temperature sensors, analog/digital inputs/outputs) into a system integer.
* **System int – Set value**
* Sets the integer to a specific value. The parameter **Value (%)** can be adjusted in the range of a 32-bit integer.
* **System int – Reset**
* Resets the integer’s value to zero.
### Quick Tips:
* **Use bits** when dealing with digital on/off actions (lights, switches).
* **Use integers** for numeric values that need adjustment or tracking (like temperature or dimming lights).
* Always check the **Inc/Dec Step** when programming to ensure the integer changes by the amount you want.
This manual covers the basics of working with **System Bits** and **System Integers** in iNELS. With these tools, you can manage a wide variety of functions and automate smart building actions smoothly!
## Creating Scenes with System Bits to Control Different Actions in iNELS
Scenes in iNELS allow you to control multiple devices and their actions simultaneously. Using **System Bits**, you can easily create these scenes to automate a group of actions like turning on lights, closing blinds, and setting the temperature with a single command.
Here's a step-by-step guide on how to create scenes using System Bits:
***
### **Step 1: Understanding the Role of System Bits**
* **System Bits** are digital flags that can store simple on/off states.
* When a **bit is set** (turned on), it can trigger actions in different devices.
* You can use a single **System Bit** to control multiple devices, creating a “scene” where several actions happen at once.
***
### **Step 2: Decide the Actions for Your Scene**
Think about what actions you want your scene to perform. For example:
* **Scene 1 (Evening)**:
* Dim the lights.
* Close the curtains.
* Turn on the TV.
* **Scene 2 (Leaving Home)**:
* Turn off all lights.
* Turn off appliances.
* Close the blinds.
Each of these actions will be tied to specific devices and functions.
***
### **Step 3: Create a System Bit for the Scene**
**Go to the System Manager** in iNELS Design Manager.
**Create a New System Bit** for each scene. For example:
* Scene 1 = **System Bit 1**
* Scene 2 = **System Bit 2**
These System Bits will act as triggers for your scenes.
***
### **Step 4: Assign Actions to the System Bit**
Add the Bits to the design plane. For each System Bit, assign the actions you want it to control:
1. **Select the System Bit** you created (e.g., System Bit 1 for Scene 1).
2. **Assign Actions** to the bit:
* **Digital outputs** like lights, blinds, or other devices.
* Example: Assign the action “dim lights” to **System Bit 1**, the action “close curtains” to **System Bit 1**, and so on.
3. You can add as many actions as needed, allowing the System Bit to control multiple devices in a single scene.
***
### **Step 5: Set Up Conditions (Optional)**
If you want your scene to activate only under specific conditions (e.g., only at night), you can set up conditions:
1. **Set up triggers** like time-based conditions or when other actions occur (e.g., sunset).
2. These conditions will determine when the System Bit can be activated.
***
### **Step 6: Activate the Scene**
Once you’ve set up the System Bit and assigned actions, the scene can be activated:
* You can **manually activate** it by triggering the System Bit.
* Alternatively, you can link the bit to a physical button, switch, or even a mobile app.
***
This method allows you to manage multiple devices and actions seamlessly with a single bit, making your building automation smoother and more efficient!
## Using System Integers for Temperature Control and Dimming Lights in iNELS
**System Integers** in iNELS are powerful tools for controlling devices that require numeric values, such as adjusting the temperature or dimming lights. Here's a simple guide on how to use System Integers for these functions.
* **System Integers** store numeric values, which can be updated or modified.
* They are ideal for functions like **temperature control** or **light dimming**, where you need gradual adjustments rather than just on/off commands.
***
### **Using System Integers for Temperature Control**
**1. Create a System Integer for Temperature**
* Go to the **System Manager** in iNELS Design Manager.
* **Create a new System Integer**, which will store the temperature value (e.g., **System Int 1** for room temperature).
**2. Assign Actions to Control Temperature**
Add the integer to the design plane. You can control the temperature with specific actions based on changes in the System Integer value.
* **System int change**: This action triggers when the integer value changes.
* **System int change up**: Triggered when the temperature value is increased.
* **System int change down**: Triggered when the temperature value is decreased.
**3. Link the System Integer to a Thermostat**
* **Assign the thermostat** to be controlled by the **System Int 1** value.
* When the integer value increases, the thermostat raises the temperature. When it decreases, the temperature lowers.
**4. Set Increment/Decrement Values**
You can set how much the temperature changes each time you adjust it by setting the **Inc/Dec step**:
* Go to the **System int – Increment** function to set how much the value increases when the user raises the temperature.
* Use **System int – Decrement** to specify how much the value decreases.
For example, you can set the increment step to 1°C. Each time the integer is changed up or down, the temperature will increase or decrease by 1°C.
***
### **Using System Integers for Dimming Lights**
**1. Create a System Integer for Light Dimming**
* Similar to the temperature control setup, you’ll need to create a **System Integer** for light dimming (e.g., **System Int 2**).
* This integer will represent the dimming level (e.g., from 0 to 100%).
**2. Assign Actions to Control Light Dimming**
For dimming, you’ll use the following actions based on the System Integer value:
* **System int – Increment**: Increase the dimming level by a set value (e.g., 10% at a time).
* **System int – Decrement**: Decrease the dimming level similarly.
**3. Link the System Integer to the Dimmer**
* Assign the **lighting dimmer** to respond to changes in **System Int 2**.
* As the integer value increases or decreases, the dimming level will adjust.
For example:
* When **System Int 2 = 0**, the light is fully off.
* When **System Int 2 = 50**, the light is at 50% brightness.
* When **System Int 2 = 100**, the light is fully on.
**4. Set Increment/Decrement Values for Dimming**
* Set the **Inc/Dec step** to control how much the brightness changes each time.
* For smoother dimming, you can set a smaller step (e.g., 5% increments), so the light dims gradually.
***
## **Advanced Control with System Integers**
**Using "System int – Set value"**
If you want to instantly set the temperature or light level to a specific value:
* Use the **System int – Set value** function.
* Example: You could set **System Int 1** (temperature) to 22°C or **System Int 2** (dimming level) to 75% directly.
**Using "System int – Copy"**
If you want to copy a value from a sensor (e.g., temperature sensor or ambient light sensor), use the **System int – Copy** function to set the System Integer based on sensor readings.
***
### **Practical Example**
**Temperature Control:**
* **System Int 1** is created to store temperature (e.g., current room temperature).
* **Increment/Decrement step** is set to 1°C.
* Linked to the room’s thermostat.
* **Action**: When the integer is incremented, the room heats up by 1°C, and when decremented, it cools down by 1°C.
**Light Dimming:**
* **System Int 2** is created to control dimming.
* **Increment/Decrement step** is set to 10%.
* Linked to the room’s light dimmer.
* **Action**: When the integer is incremented, lights brighten by 10%, and when decremented, they dim by 10%.
***
#### **Summary**
* Use **System Integers** to store and adjust **temperature** or **dimming levels**.
* Assign **increment** and **decrement** actions to control how much the values change.
* Link System Integers to the devices (thermostat or dimmer) to create smooth, responsive controls for your automation needs.
This setup allows you to have fine-tuned control over the comfort and ambiance of your space with ease!
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