Eaton PROFIBUS-DP EZ204-DP User Manual Page 106

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Wiring with EZ
MN05013003E102
Analog value comparator/
threshold value switch
EZ provides 16 analog comparators A1 to A16 for use as
required. These can also be used as threshold value switches
or comparators.
An analog value comparator or threshold value switch
enables you to compare analog input values with a setpoint,
the actual value of another function relay or another analog
input. This enables you to implement small controller tasks
such as two-point controllers very easily.
All EZ-AB, EZ-DA and EZ-DC devices are provided with
analog inputs.
The analog inputs of the EZ500 are I7 and I8.
The analog inputs of the EZ700 are I7, I8, I11 and I12
The following comparisons are possible:
Value at function
relay value input I11
Comparator functions Value at function
relay value input I2
Mode selection at
the function relay
Analog input I7, I8,
I11, I12
Analog input I7, I8,
I11, I12
Setpoint 0000 to
9999
Setpoint 0000 to
9999
Actual value of
counter relay C1 to
C16
Actual value of
counter relay C1 to
C16
Actual value of timing
relay T1 to T16
Actual value of timing
relay T1 to T16
Less than LT
Less than/equal to LE
Equal to EQ
Greater than/equal to GE
Greater than GT
EZ500_700.book Page 102 Tuesday, May 3, 2005 5:15 PM
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