9 Glossary of terms
228 Operating instructions 05/10 MN05013003Z-EN www.eaton.com
P Buttons The P buttons can be used to simulate four additional inputs which are
controlled directly by the four cursor buttons, rather than via external contacts.
The switch contacts of P buttons are connected up in the circuit diagram.
Retention Data is retained even after the easy relay power supply is switched off.
(retentive data)
The following data is retentive:
• easy circuit diagram,
• Parameters, setpoint values,
• Texts,
• System settings,
• Password,
• Actual values of marker relays, timing relays, counters (selectable).
Circuit diagram
elements
As in conventional wiring, the circuit diagram is made up of circuit elements.
These include input, output and marker relays, plus function relays and P
buttons.
Interface The serial multifunction interface is used to exchange and save circuit
diagrams to a memory card or PC.
Each memory card contains one circuit diagram and its associated easy
settings.
The programming software easySoft-Basic or
easySoft -Pro programming software enables easy to be controlled from the
PC. Which is connected using the easy-PC-CAB programming cable or
EASY-USB-CAB.
Power supply easy-AB is supplied with an 24 V AC supply. The terminals are labeled with "L"
and "N".
easy-AC is powered by AC voltage at 85 to 264 V AC, 50/60 Hz. The terminals
are labeled with "L" and "N".
easy-DA is powered by DC voltage at 12 V DC. The terminals are labeled
“+12 V” and “0 V”.
easy-DC is powered by DC voltage at 24 V DC. The terminals are labeled
“+24 V” and “0 V”.
The terminals for the power feed are the first three terminals on the input side.
Memory card The memory card is used to store your easy circuit diagram, together with its
parameter and easy settings. The data on the memory card will be retained,
even if the power supply fails or is switched off.
The memory card is inserted into the interface slot on the easy device.
Rung Each line in the circuit diagram is a rung. easy500 and easy700 can take
128 rungs.
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