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4 Wiring with EZ 73
Operation of EZ 73
– Buttons for editing circuit diagrams and
function relays 73
– Operation 74
– Relay, function relays 77
– Saving and loading circuit diagrams 80
Working with contacts and relays 80
– Input and output contacts 81
– Creating and modifying connections 84
– Inserting and deleting a rung 86
– Switching with the cursor buttons 87
– Checking the circuit diagram 88
– Coil functions 89
Function relays 95
– Example with function relay timer and
counter relay 96
Analog value comparator/threshold value switch 102
– Circuit diagram display with analog
value comparator 103
– Parameter display in RUN mode 105
– Resolution of the analog inputs 105
– Function of the analog value comparator 106
Counters 114
– Function of the counter function relay 118
High-speed counters, EZ-DA, EZ-DC 122
– Frequency counters 122
– High-speed counter 128
Text display 134
– Wiring a text display 135
– Retention 135
– Scaling 136
– Function 136
– Text entry 137
– Character set 137
– Entering a setpoint in a display 138
EZ500_700.book Page 3 Tuesday, May 3, 2005 5:15 PM
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