User Manual

Function blocks
133
08/04 AWB2528-1423GB
Inputs
The function block inputs
>I1, >I2 and >NO can have
the following operands:
•Constants
• Markers MD, MW, MB
• Analog inputs IA01 to IA04
– IA01: terminal I7
– IA02: terminal I8
– IA03: terminal I11
– IA04: terminal I12
• Analog output QA01
• Actual value
… QV> of another function block
Specifying the marker range without offset
If MB, MW or MD markers are specified at both
>I1 and
>I2 the number of the markers is the start of comparison
range 1 or 2.
Specifying the marker range with offset
If you wish to work with an offset, specify one of the
following variables at function block input
>I1 or >I2:
•Constant,
• Actual value ..QV of a function block,
• Analog input IA..,
• Analog output QA..
The value at the input is taken as the offset to marker MB01.
Displaying the parameter set in the PARAMETERS
menu
• + Access enabled
• –: Access disabled
Contacts
BC01E1 to BC32E1: the number of comparison elements
exceeds one of the comparison ranges.
BC01E2 to BC32E2: The number of comparison elements
exceeds one of the comparison ranges.