# Allen-Bradley MicroLogix 1400

Allen-Bradley MicroLogix 1400 is a PLC device from Allen-Bradley MicroLogix 1400 series.

For the generic steps, see [Create a Southbound Driver](../south-devices.md) and [Groups and Tags](../../groups-tags/groups-tags.md).

## Add Driver

On **Data Collection → South Devices**, click **Add Device**.

- Name: The name of this device node.
- Driver: Select the **Allen-Bradley MicroLogix 1400** driver.

## Connection Parameters

Click the driver card to open the **Device Configuration** page and fill in:

| Field          | Description                |
| -------------- | -------------------------- |
| PLC IP Address | Device ip                  |
| PLC Port       | Device port, default 44818 |
| CIP Connection Size       | CIP connection size, default 500        |
| Logix Array Block Size       | Logix array block size, default 120        |

## Tag Configuration

The data types and address formats supported by this driver are listed below.

### Data Types

* INT16
* UINT16
* INT32
* UINT32
* FLOAT
* BIT
* STRING

### PLC Data Address

>  FILE_TYPE FILE_NUMBER:BYTE_OFFSET

| File Type | File Identifier                 |
| ---- | --------------------- |
| Output File | O |
| Input File| I |
| Status File| S |
| Binary File| B |
| Timer File| T |
| Counter File| C |
| Integer File| N |
| Float File| F |

### Example of Tag Configuration

| Address        | Data Type | Description      |
| ---------- | ------- | -------- |
| O:3         | int16   | Output file, word address 3 |
| O:3/1        | bit   | Output file, word address 3, bit address 1 |
| O/1        | bit   | Output file, bit address 1 |
| I:3	 | int16   | Input file, word address 3 |
| I:3/1        | bit   | Input file, word address 3, bit address 1 |
| I/1        | bit   | Input file, bit address 1 |
| S:3         | int16   | Status file, word address 3 |
| S:3/1        | bit   | Status file, word address 3, bit address 1 |
| S/1        | bit   | Status file, bit address 1 |
| B3:5         | int16   | Binary file, number 3, word address 5 |
| B3:10/3        | bit   | Binary file, number 3, word address 10, bit address 3 |
| B3/13        | bit   | Binary file, number 3, bit address 13 |