Compare blocks – Rockwell Automation 20D PowerFlex 700S AC Drives with Phase II Control Reference Manual User Manual

Page 209

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Rockwell Automation Publication PFLEX-RM003E-EN-E - January 2011

209

Detailed Drive Operation Chapter 1

Compare Blocks

The compare block are used to compare two floating point values and indicate
which value is larger. It is possible to use the DInt to Real converter to convert
one double integer parameter to a floating point value and use that value as an
input to a compare block.

Configuration:

• Parameter 1062 [Logic/Cmpr State], bits 4 “Cmpr 1 A</=B”…7 “Cmpr 2

A>/=B” display the logical states of the compare functions (parameters
1071 [Compare 1A]…1074 [Compare 2B]. A value of 0 = False and 1 =
True.”

• Parameter 1071 [Compare 1A] sets input A for the Compare 1. The

results of the compare are displayed in parameter 1062 [Logic/Cmpr
State].

Available functions are (A </= B, A >/= B).

• Parameter 1072 [Compare 1B] sets input B for the Compare 1. The results

of the compare are displayed in parameter 1062 [Logic/Cmpr State].

Available functions are (A </= B, A >/= B).

• Parameter 1073 [Compare 2A] sets input A for the Compare 2. The

results of the compare are displayed in Par 1062 [Logic/Cmpr State].

Available functions are (A </= B, A >/= B).

• Parameter 1074 [Compare 2B] sets input B for the Compare 2. The results

of the compare are displayed in Par 1062 [Logic/Cmpr State].

Available functions are (A </= B, A >/= B).

<

=

>

=

1071

1072

1062

04

1062

05

<

=

>

=

1073

1074

1062

06

1062

07

Compare 1A

Compare 1B

Compare 2A

Compare 2B

(Cmpr 1 A>/=B)

(Cmpr 2 A</=B)

(Cmpr 2 A>/=B)

(Cmpr 1 A</=B)

Logic/Cmpr State

Logic/Cmpr State

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