Rockwell Automation 1753-PCS-PAR Using RSLogix Guard PLUS! with GuardPLC Controllers - Manual (Page 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)