Rockwell-automation DAG6.5.8 APPLICATION GUIDE SCADA SYSTEM Bedienungsanleitung PDF herunterladen (Seite 135)

100

101

Publication AG-UM008C-EN-P - February 2005

Configuring MicroLogix 1100/1200/1500 Controllers 3-67

The data is retrieved as an ASCII string with the following format:

<date><UDS><time><UDS><1

Data><UDS><2

Data><UDS>…<UDS><Last

Data><NUL>

• where:

<date> = mm/dd/yyyy - ASCII characters (date is optional)

<time> = hh:mm:ss - ASCII characters (time is optional)

<UDS> = User Defined Separator (TAB, COMMA, or SPACE)

<X Data> = ASCII decimal representation of the value of the data

<NUL> = record string is null terminated

• If the Real Time Clock module is not present in the controller,

<date> is formatted as 00/00/0000, and <time> is formatted as

00:00:00.

• The Communications Device determines the number of sets of

data that have been recorded but not retrieved.

• The controller performs a the data integrity check for each

record. If the data integrity check is invalid, a failure response is

sent to the Communications Device. The data set is deleted as

soon as the failure response is queued for transmission.

Accessing the Retrieval File

You can use a dedicated retrieval tool or create your own application.

Retrieval Tools

There are a number of retrieval tools designed for use with Palm OS,

Windows

CE, Windows 9x, and Windows NT

. You can download

these free tools from our web site. Visit

http://www.ab.com/micrologix.

TIP

For easy use with Microsoft Excel, use the TAB

character as the separator character.

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