Rockwell Automation 1760-xxxx Pico GFX-70 Controllers User Manual - Manual (Page 151)

Publication 1760-UM002B-EN-P - March 2005
Wiring with Pico GFX-70 4-41
Figure 4.25 Pico GFX-70 circuit diagram with analog value comparators
Parameter display and parameter set for analog value comparators:
Inputs
The function block inputs
>I1 , >F1 , >I2 , >F2 , >OS
and
>HY
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
I 01----A 01Q1-----------------[ Q 01
I 02--
|
-A 02Q1-----------------S Q 02
| -A 03Q1-----------------R Q 03
A 02 GT +
>I1
>F1
>I2
>F2
>OS
>HY
A 02 Function block analog value comparator number 02
GT Greater than mode
+ Appears in the parameter display
>I1 Comparison value 1
>F1 Gain factor for
>I1
(
>I1
=
>F1
x value)
>I2 Comparison value 2
>F2 Gain factor for
>I2
(
>I2
=
>F2
x value)
>OS Offset for the value of
>I1
>HY Switching hysteresis for value
>I2
(Value
HY
applies to positive and negative
hysteresis.)