--- title: AB EthernetIP Ethernet slug: litmusedge/quickstart-guide/industrial-systems-connection-guide/allen-bradley/ab-ethernetip-ethernet description: Review the following information for setting up and configuring the AB EthernetIP Ethernet driver. docTags: createdAt: 2022-06-29T17:46:50.000Z --- Review the following information for setting up and configuring the AB EthernetIP Ethernet driver. # Litmus Edge Compatible Series | Compatibility parameter | Compatible items | | ---------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | **Driver type** | Ethernet | | **Validated devices/series** | [MicroLogix](https://www.rockwellautomation.com/en-us/products/hardware/allen-bradley/programmable-controllers/micro-controllers/micrologix-family/micrologix-1400-controllers.html)
[SLC 500](https://www.rockwellautomation.com/en-us/products/hardware/allen-bradley/programmable-controllers/small-controllers/slc-500-controllers.html) | | **Replaces Gen 1 driver(s)** | [AB MicroLogix (Gen1)](docId\:qRy7xOCT2SAvqeKHpVWzy)
Learn more about [Gen1 and Gen2 Driver Differences](docId\:HaIxS2l_OqxFj1YVYWNc1) | To set up and configure this device in Litmus Edge, you will need to do the following: - Step 1: Set up and Configure the PLC Device - Step 2: Set up the PLC Device in Litmus Edge DeviceHub - Step 3: Configure the List of Registers # Step 1: Set up and Configure the PLC Device If the device is configured for Ethernet access, find its network parameters. Otherwise, follow the steps below. **To configure your device:** 1. Start the RSLogix 500 application. 2. Select **File** > **Open**, then select your PLC project. 3. In *Controller Organizer*, right-click the device and select **Properties** from the popup menu. The *Module Properties* dialog box appears. 4. Select the **Port Configuration** tab. 5. Copy the IP address from the **IP address** field. # Step 2: Set up the PLC Device in Litmus Edge DeviceHub Configure the following parameters when you [Connect a Device](#) with this driver. Update default values to the specific setup of your device. | Parameter | Value | | ------------------- | ------------------------------------------ | | **Type** | Allen-Bradley | | **Driver** | AB EthernetIP Ethernet | | **Network Address** | The device address you recorded in Step 1. | | **Port** | 44818 | | **Slot** | 0 | # Step 3: Configure the List of Registers When you [Add a Tag](docId\:Tuy-hh0Gi8DjVOT70wRoh) to the connected device, refer to the following register table and tag parameters. Refer to the following additional resources: - [Device and Tag Metadata Use Case](docId:583P-fbuozem6wHgRdGkQ) - [Tag Formula Variables](docId\:iFBwcou90qTFODK_hRYSR) ## Register Table | **Name** | **Value Types** | **Access Types ** | **Address Format** | **Min Address** | **Max Address** | **Description** | | ----------- | --------------- | ---------------------- | ------------------ | --------------- | --------------- | ------------------------------------------------------------------------------------------------------ | | O(Bit) | bool | R/W | DDDdd | 0 | 25515 | Outputs | | I(Bit) | bool | R/W | DDDdd | 0 | 25515 | Inputs | | Slot O(Bit) | bool | R/W | SSEEdd | 0 | 3115 | Outputs | | Slot I(Bit) | bool | R/W | SSEEdd | 0 | 3115 | Inputs | | S(Bit) | bool | R/W | DDDdd | 0 | 25515 | Status Bits | | S | int | R/W | DDD | 0 | 255 | Status Words | | B(Bit) | bool | R/W | DDDdd | 0 | 25515 | Bit data file Bfn | | B | int | R/W | DDD | 0 | 255 | Bit data file, 16-bit access | | Timer | T | R/W | DDD | 0 | 255 | Timer | | TfnPRE | int | R/W | DDD | 0 | 255 | Timer Preset Value | | TfnACC | int | R/W | DDD | 0 | 255 | Timer Accumulator Value | | Counter | C | R/W | DDD | 0 | 255 | Counter | | CfnPRE | int | R/W | DDD | 0 | 255 | Counter Preset Value | | CfnACC | int | R/W | DDD | 0 | 255 | Counter Accumulator Value | | Control | R | R/W | DDD | 0 | 255 | Control Data Element | | R6LEN | int | R/W | DDD | 0 | 255 | Control Data Element Number of characters specified to be sent or received | | R6POS | int | R/W | DDD | 0 | 255 | Control Data Element: Number of characters actually sent or received | | N(Bit) | bool | R/W | DDDdd | 0 | 25515 | Integer File Nfn, but access | | N | int | R/W | DDD | 0 | 255 | Integer File is a general purpose file consisting of 16-bit signed integer data words | | F | real | R/W | DDD | 0 | 255 | Floating point data file (F8) consisting of 32-bit IEEE-754 floating point data elements | | L | dint | R/W | DDD | 0 | 255 | The Long Word File is a general purpose file consisting of 32-bit signed integer data words | | ST | string | R/W | DDD | 0 | 255 | The String File is a file that stores ASCII characters. See String (ST) Data File for more information | ## Tag Parameters - **Name**: Select a register name from the drop-down list. The available options depend on the names in the register table. - **Value Type**: Select a data type from the drop-down list. The available options depend on the register name selected. - **Polling Interval**: Enter a value in seconds. This determines how often the tag should poll the register for data. - **Tag Name**: Enter a name for the tag. - **Description** (Optional): Enter a description for the tag. - **Address**: Enter a tag address. The value must in the decimal format, within the allowed min/max range. Omit the leading zeros. The device might use the decimal (D), hexadecimal (H), or octal (O) address format. See the Register Table at the bottom of the dialog box. For Bit tags, append the bit address without the bit separator. The lowercase letters in the address format indicate how many digits you should enter in the Bit address. - **Data File** (Optional): Enter the data file of the tag. - **Count**: Enter the number of register values to read. A count higher than 1 will generate an array of values from the address value configured and respective subsequent address values. - **Tag Formula**: Enter a formula for the tag to process the generated data. Two variables are permitted: `value` (current tag value) and `timestamp` (current tag UNIX time in milliseconds). The following math functions are available: - sin - cos - sqrt - tan - power: power(`x`) performs the operation `10^x`. - log: log(`x`) is the natural logarithm (the logarithm is in base `e`). - exp: exp(`x`) performs the operation `e^x`. - **Only Publish on Change of Value**: Select the checkbox to customize NATS messages to be published only when the *value *parameter changes from a previous value to a new one. *Change of Value* only applies to boolean, numeric (such as int or float), and simple string data types. It does not apply to complex types, such as JSON or array. Poll-once topics will not be affected by *Change of Value* settings. These topics will still only see a single message. - **Meta Data**: Metadata summarizes basic information about data. This feature allows you to define key-value pair data for the device output payload later on. It can then be used to find, use, and reuse particular instances of data. :::hint{type="info"} **Note**: If you use special characters in meta data key names, the special characters are replaced with underscore characters in the payload. This can cause two key names to be combined into one. For example, configuring the key names a\*\*b and a&\&b will cause only one key name to be created (a\_\_b). :::