Rockwell Automation 1760-xxxx Pico GFX-70 Controllers User Manual - Manual (Page 148)

Publication 1760-UM002B-EN-P - March 2005
4-38 Wiring with Pico GFX-70
Function Blocks The function blocks are used to simulate some of the devices used in
conventional open-loop and closed-loop control systems. Pico GFX-70
provides the following function blocks:
• Analog value comparator/threshold controller (only with Pico GFX-70
24V dc variants)
• Arithmetic
– addition, subtraction, multiplication, division
• Compare data blocks
• Transfer data blocks
• Boolean sequences
• Counters
– up and down counters with upper and lower threshold values, preset
– frequency counters
– high-speed counters
– incremental encoder counters
• Comparators
• Text, output freely editable texts, enter values
• Data function block
• PID controllers
• Smoothing filters
• Value scaling
• Pulse width modulator
• Read (GET) Pico-Link data
• Time switches
– weekday/time
– year, month, day (date)
• Numerical converters
• Master reset
• Operating hours counter
• Write (PUT) Pico-Link data
• Synchronization of date and time via the Pico-Link
• Timing relays
– on-delayed
– on-delayed with random switching
– off-delayed, also retriggerable
– off-delayed with random switching, also retriggerable
– on and off delayed
– on and off delayed with random switching