Omron CP1H-CPU - 05-2006, Operation Manual

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365
Memory Cassette Functions
Section 6-5
Reading Data from
the Memory Cassette
to the CPU Unit
The CX-Programmer's Memory Cassette function can be used to read data
stored on the Memory Cassette, and transfer it to the corresponding areas in
the CPU Unit. The data to be read can be individually specified.
This function can be used for operations such as writing the required backup
data to the CPU Unit for maintenance.
Precautions when
Using the Memory
Cassette Data
Transfer Function
• In order for Memory Cassette data to be transferred, the Memory Cas-
sette must be mounted in the CPU Unit.
• The BKUP indicator lights while a Memory Cassette data transfer or verifi-
cation is in progress. At the same time, the remaining amount of data to
be transferred or verified is displayed as a percentage in the 7-segment
LED. (When the transfer or is completed,
00
flashes for 5 seconds and
then the display is cleared. If the data transfer fails,
er
flashes for 5 sec-
onds and then the display is cleared.
While the BKUP and 7-segment LED indicators are flashing, 1) do not turn
OFF the power supply to the PLC and 2) do not remove the Memory Cas-
sette. If either of these is done, in the worst case it may make the Memory
Cassette unusable.
• Memory Cassette data transfers and verification are possible only when
the CPU Unit operating mode is PROGRAM mode. The Memory Cassette
transfer function cannot be used in either RUN or MONITOR mode.
• The operating mode cannot be switched from PROGRAM mode to RUN
or MONITOR mode while a Memory Cassette data transfer or verification
is in progress.
Programs, parameters, DM initial
values, comment memory, etc.
(Can be specified individually.)
CP1H CPU Unit
Data in CPU
Unit
Reading
CX-Programmer
Reading from Memory
Cassette to CPU Unit
CP1W-ME05M
Memory Cassette
99 98 97
03
02 01 00
er.
Flashes (for 5 s)
7-segment LED display
Countdown
Flashes (for 5 s)
When a transmission
error occurs