CP, comparator
223
02/16 MN05013001Z EN
CP, comparator
This function block is used to compare variables and/or
constants with each other. The following comparisons are
possible:
• >I1 greater than >I2
• >I1 equal to >I2
• >I1 less than >I2
easySafety allows the use of up to 16 comparators.
Function block
Figure 87:
Comparator function block
a
Inputs CP..I1 and CP..I2: The value at input I1 is compared with
the value at I2.
b
Contact CP..LT: Closes on >I1 less than >I2.
c
Contact CP..EQ: Closes on >I1 equal to >I2.
d
Contact CP..GT: Closes on >I1 greater than >I2.
Wiring of the function block
You wire the function block in the standard circuit diagram
with its contacts.
Example:
Figure 88:
Wiring the function block contacts
GT
CP...
ComParator
LT
EQ
>I2
>I1
DW
DW
a
b
c
d
CP12LT-------------------------S M 21
CP12EQ-------------------------S M 22
CP12GT---------
-
--------------
u
R M 21
h
R M 22
Summary of Contents for easySafety
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