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Programming wiring
MN05013005E
156
Function blocks
The function blocks are used to simulate some of the devices
used in conventional open-loop and closed-loop control
systems. EZD provides the following function blocks:
• Analog value comparator/threshold controller (only
with EZD 24 V DC variants)
• Arithmetic,
– addition, subtraction, multiplication, division
• Compare data blocks
• Transfer data blocks
• Boolean operation
• 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) data from the EZ-NET
• Time switches,
– weekday/time
– year, month, day (date),
• Numerical converters
• Master reset
• Operating hours counter
• Write (PUT) data to the EZ-NET
• Synchronization of date and time via the EZ-NET
• Timing relays
– on-delayed,
– on-delayed with random switching,
