User manual

Publication 1734-UM015A-EN-E - November 2009
66 DeviceLogix Capabilities
For more information on the Timer/Counter category, refer to the
DeviceLogix System User Manual, publication RA-UM003
.
Comparison Category
The Comparison category includes basic comparison functions, including
these instruction types:
• Greater Than (GRT)
• Greater Than or Equal To (GEQ)
• Equal (EQU)
• Not Equal (NEQ)
• Less Than (LES)
• Less Than or Equal (LEQ)
• Mask (MEQ)
Operation rules [all except Mask (MEQ)]
The conditions and outputs of each function block are described below.
Operation rules [Mask (MEQ) only]
The Mask process is outlined below:
IF (Source AND Mask) == (Compare AND Mask)
Output is Set
ELSE
Function Block
Type
Condition Output
Greater Than (GRT) Source A > Source B 1
Source A <= Source B 0
Greater Than or
Equal (GEQ)
Source A >= Source B 1
Source A < Source B 0
Equal (EQU) Source A == Source B 1
Source A != Source B 0
Not Equal (NEQ) Source A != Source B 1
Source A == Source B 0
Less Than (LES) Source A < Source B 1
Source A >= Source B 0
Less Than or Equal
(LEQ)
Source A <= Source B 1
Source A > Source B 0