User Manual

Function blocks
127
08/04 AWB2528-1423GB
Analog value comparator operating modes
Contacts
A 01Q1 to A 32Q1
Memory requirement of the analog value comparator
The analog value comparator function block requires
68 bytes of memory plus 4 bytes per constant on the
function block inputs.
Figure 68: Signal diagram of analog value comparator
1: actual value on
>I1
2: setpoint value on >I2
3: hysteresis on >HY
4: switching contact (make contact)
5: offset for value
>I1
Parameter Function
GT >I1 greater than >I2
EQ >I1 equal to >I2
LT >I1 less than >I2
1
3
2
4
AB C
3
1
6
1
5