Change Data Table Files. Rockwell Automation Allen-Bradley MicroLogix 1400 Series, Allen-Bradley MicroLogix 1766

Chapter 2 Use Data Views to Access Controller Data

The available and default display formats depend on the data type of the file.

Click Back to display the previous page. To refresh the data view, click Update.

Change Data Table Files

IMPORTANT This feature is only supported in the earlier revisions of MicroLogix 1400.

It is not supported in firmware revision 21.006 or later.

The data in the Data File Types such as Binary, Integer, Long, Float, and String can be changed. The Binary, Integer, and Long types support all the Display formats. You can edit Binary types by bit, and the Octal, Decimal, and

Hexadecimal types by element. A user account with either Write or

Administrator access level can change the Data Table Files. When you click N7 in

Data Views, Data Writable appears beside a Data File Type (Integer here) as shown below.

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How to Change a Data File Type

In the steps that follow, a Binary type is assumed.

Rockwell Automation Publication 1766-UM002E-EN-P - June 2019

Use Data Views to Access Controller Data Chapter 2

1.

Change Display As to Binary, then the following screen appears.

2.

Double-click the data that you want to change, then the background color turns pink.

3.

Enter a value and either press Enter or click an area in the screen, then a confirmation window appears.

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Chapter 2 Use Data Views to Access Controller Data

4.

Click OK to change the value.

The following screen appears when the value is successfully saved into the server.

If the following screen appears, the value is not saved and the value returns to the original value.

If you want to change the data in Decimal, click the pull-down menu to change the Display As to Decimal and follow the steps described. The steps also apply to the String type.

Information on String Data File Types

Take note of the following when changing String file types using the web interface:

• The maximum string data length allowed to be saved into the controller is

82.

• Each special character translates to three characters in the network.

• When using only special characters, you can enter up to 37 characters.

• When using special characters in combination with alphanumerics, you can enter up to 113 characters as illustrated by the formula: (alphanumeric characters) + (special characters x 3) < 113.

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