Rockwell-automation 1760-xxxx Pico GFX-70 Controllers User Manual Manual de usuario Pagina 187

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Publication 1760-UM002B-EN-P - March 2005
Wiring with Pico GFX-70 4-77
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
Actual Value QV>
The actual valueQV> can be assigned the following operands:
Markers MD, MW, MB
Analog output QA01
Displaying the Parameter Set in the PARAMETERS Menu
+ Access enabled
- Access disabled
Contacts
CF01OF to CF04OF: Actual value Upper set point
CF01FB to CF04FB: Actual value Lower set point
CF01ZE to CF04ZE: Actual value = Zero
Coils
CF01EN to CF04EN: enable of the counter with coil status = 1.
Memory Requirement of the Frequency Counter
The frequency counter function block requires 40 bytes of memory plus 4
bytes per constant on the function block inputs.
Retention
The frequency counter does not retain actual values, as the frequency is
re-measured continuously.
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