Omron CP1L-EL20DR-D, Operation Manual

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Memory Cassette Functions Section 8-6
8-6 Memory Cassette Functions
8-6-1 Overview
CP1L-EL/EM CPU Units have Memory Cassette functions that enable data in
the CPU Unit to be stored on and read from a special CP1W-ME05M Memory
Cassette. These functions can be used for the following applications.
• Copying data to other CPU Units to produce duplicate devices.
• Backing up data in case the CPU Unit needs to be replaced due to any
malfunction.
• Writing and updating data when existing device versions are upgraded.
Memory Cassette
Specifications
Use the following Memory Cassette.
Data that Can be
Stored on a Memory
Cassette
The following data can be stored on a Memory Cassette.
The areas for storing various types of data have fixed allocations in the Memory
Cassette, and a single Memory Cassette corresponds to a single CPU Unit.
Therefore it is not possible to simultaneously store multiple items of the same
type of data (e.g., two user programs).
Also, the data can only be read to a CPU Unit. It cannot be directly managed
from a personal computer like files.
The only data that can be stored on a Memory Cassette is the data from a
CPU Unit.
Model Specifications
CP1W-ME05M • Memory size 512 Kwords
• Storage capacity The following CPU Unit data (for each Unit)
• User programs
• Parameters
• Comment memory
• Function Block (FB) sources
• DM initial values in the built-in flash memory
• DM in RAM
• Write method Operations from the CX-Programmer
• Read method Powering up with DIP switch pin SW2 set to
ON, or operations from the CX-Programmer
Data stored on Memory Cassette Location in CPU Unit
User programs Built-in RAM, built-in flash
memory (User Program Area)
Parameters PLC Setup, CPU Bus Unit set-
tings, routing tables Built-in RAM, built-in flash
memory (Parameter Area)
Comment data
for user pro-
grams Variable tables Built-in flash memory (Com-
ment Memory Area)
(I/O comments, rung com-
ments, program comments) Built-in flash memory (Com-
ment Memory Area)
Program indexes (section
names, section comments,
program comments) Built-in flash memory (Com-
ment Memory Area)
Function Block (FB) sources Built-in flash memory (FB
Source Memory Area)
DM Built-in RAM (D0 to D32767 in
DM Area)
DM initial values (See note.) Built-in flash memory (DM Ini-
tial Values Area)