CP1E-E30DR-A

Manufacturer Part NumberCP1E-E30DR-A
Description18In,12Out AC PS NonUL
ManufacturerOmron
CP1E-E30DR-A datasheet
 


Specifications of CP1E-E30DR-A

Lead Free Status / Rohs StatusLead free / RoHS Compliant  
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Internal Memory in the CPU Units
CPU Unit Memory Backup Structure
The internal memory in the CPU Unit consists of built-in RAM and built-in EEPROM. The built-in RAM is used as execution memory and the built-
in EEPROM is used as backup memory.
Built-in EEPROM
Backup memory
User Program Area
(Backup)
PLC Setup
Backup using bit in Auxiliary Area
DM Area
DM Area data read at startup
Data is retained even if the power
supply is interrupted for longer
than the backup time of the built-in
capacitor.
●Precautions for Correct Use
Create a system and write the ladder programs so that problems will not occur in the system if the data in these area may be unstable.
• Data in areas such as the DM area (D), Holding Area (H), the Counter Present Values (C) and the status of Counter Completion Flags (C), which
is retained by the battery, may be unstable when the power supply is turned off (Except for the DM area that are retained by the built-in EEP-
ROM using the Auxilliary Area bit.)
• The error log, and clock data (N/NA-type CPU Unit only) in the Auxiliary Area will become unstable. Other words and bits in the Auxiliary Area
will be cleared to their default values.
The built-in capacitor’s backup time varies with the ambient temperature as shown in the following graph.
50 hours
40 hours
25 hours
20 hours
CP1E-E@@D@-@ CP1E-N@@D@-@/NA20D@-@
CPU Unit
Built-in RAM
Execution Memory
Automatic backup
User Program Area
Read at startup
Automatic backup
PLC Setup
Read at startup
I/O Memory Areas
DM Area
If a CP1W-BAT01 Battery (sold
separately) is mounted to an N/NA-type
CPU Unit, which is normally backed up
by a built-in capacitor, data will be
backed up by the battery.
CP1E E-type CPU Unit
CP1E N/NA-type CPU Unit
9 hours
7 hours
25
40
Ambient temperature
Area where data is backed up
even if the power supply is
interrupted for longer than the
back-up time of the built-in
capacitor.
Area where data is cleared if
the power supply is
interrupted for longer than the
back-up time of the built-in
capacitor.
60
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