Rockwell-automation 1753-PCS-PAR Using RSLogix Guard PLUS! with GuardP Manuale Utente Scaricare il pdf (Pagina 92)

Publication 1753-PM001A-EN-P - November 2005

8-6 Create User-Defined Function Blocks

Define Technical Units and Scaling

You can define technical units and scaling for each variable:

The available technical units are:

Subrange has values that should be within a certain range

For example:

DINT(0,200) is an DINT value where

• the minimum allowable value is 0 and

• the maximum allowable value is 200

Enumeration not yet implemented

This button Defines a variable type

In this field Define

Techn. unit an available unit from the pulldown menu

min. value

max. value

reference points to convert a technical unit into an internal value

For example:

• technical unit from 0 to 24V

• internal representation from 0 to 1000

Enter floating point numbers for the scaling.

internally represented as

Abbreviation Unit Definition

A Ampere electrical current

Bq Bequerel activity of a radioactive source,

disintegration rate

C Colomb electrical charge

cd Candela light intensity

F Farad capacitance

Gy Gray absorbed dose

H Henry inductance

Hz Hertz frequency

J Joule energy

K Kelvin temperature (in Kelvin)

1 2 ... 87 88 89 90 91 92 93 94 95 96 97 ... 121 122

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Rockwell-automation 1753-PCS-PAR Using RSLogix Guard PLUS! with GuardP Manuale Utente Pagina 92