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FX-20P-E Handy programming panel
3.3
Program modes
3.3.1
Online mode
In the online mode, the HPP directly accesses
the program memory in the PLC.
However, write is disabled if the write protect
switch on the EEPROM memory cassette is ON
or if the PLC is currently in RUN status.
1) If a memory cassette is not attached to the
PLC, programs are written to the inbuilt PLC
memory. If a memory cassette is attached to the PLC, programs are written to the memory
cassette.
2) By operation from the HPP , programs can be transferred between the inbuilt PLC memory
and a memory cassette attached to the PLC.
3.3.2
Offline mode
In the offline mode, the HPP accesses it own inbuilt RAM.
Programs written to the inbuilt HPP RAM can be batch-transferred to the inbuilt PLC RAM or a
memory cassette attached to the PLC. Transferring to the ROM writer (option) is executed also
in the offline mode.
1) Programming in the offline mode is executed to the inbuilt HPP RAM regardless of the
program memory type in and the RUN/STOP status of the PLC.
Outline of Programming 3
HPP
Programming
Key
operation
Read
Write
Inbuilt
RAM
Write
PLC
Inbuilt
memory
Transfer
Memory
cassette
3-2
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