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Glossary
MN05013003E280
Remote expansion I/O expansion with the expansion unit (e.g. EZ620-DC-TE)
installed up to 30 m away from the basic unit. The EZ200-EZ
coupling unit is fitted to the basic unit. The input and output
data is exchanged between expansion and basic unit via a
two-wire cable.
Retention Data is retained even after the EZ power supply is switched
off (retentive data)
The following data is retentive:
• EZ circuit diagram
• Parameters, setpoint values
•Texts
• System settings
• Password
• Actual values of marker relays, timing relays, counters
(selectable)
Retentive data See Retention.
Rungs Each line in the circuit diagram is a rung. EZ500 and EZ700
can take 128 rungs.
EZ500_700.book Page 280 Tuesday, May 3, 2005 5:15 PM
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