Black Box IC108A Betriebsanweisung PDF herunterladen (Seite 62)

Advant

Smart Device (HART

) Interface User’s Guide

Chapter 3 Configuration

3-8 3BUR 001 085R0001 REV A

SOFTWARE NAME Field

This field specifies the software downloaded to the controller at start-up.

Valid entries are: AC460.

Default is: AC460

DO RATE Field

The DO RATE field specifies the minimum resolution of any pulse output for the controller. For

pulse train outputs, the pulse width and pulse interval as specified through the PO CHANNEL

NUMBER edit window of the Controller I/O Templet must be multiples of the DO Rate. For

pulse duration outputs, the duration value calculated by the Pulse Duration FCM is rounded to

the next lower multiple of the DO Rate.

Valid entry is:

a number of milliseconds as either 20, 40, 100, 200, or 1000

Default is: 20

NOTE

Digital inputs are scanned at one half the DO RATE. This is important because

using the DO RATE default value of 20 ms when no pulse outputs are present will

lead to a high CPU load. The scan rate for smart devices is not affected by the

DO RATE field.

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Black Box IC108A Betriebsanweisung Seite 62