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Internal operations 114 – Toshiba T2N User Manual

Page 127

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2.INTERNAL OPERATIONS

114

PROSEC T2N

(15) Writing data

User data address and data content received from the periphrals is stored

in the user data memory.

(16) Program reading from the EEPROM

The checked EEPROM contents are transferred to the user program

memory and user data memory (RW, T, C, D) of the main memory (RAM).

(17) Program writing to the EEPROM

The content of the user program memory and user data memory (RW, T, C,

D) of the main memory (RAM) are transferred to the EEPROM.

The execution conditions for these functions are shown below.

Function

Execution conditions

Reading the I/O allocation
information

Reading the system information

Reading the program

Reading data

Possible always in any mode

except in the case of communication impossible
with the periphrals when detecting error in the
initialization

Batch reading the program

Search

Possible except in ERROR mode

Program check

Program writing to EEPROM

Possible in HALT mode

Memory clear

I/O automatic allocation

Writing the I/O allocation
information

Writing the system information

Writing the program

Batch writing the program

Program reading the EEPROM

Possible when in HALT mode
except when operation mode switch is P-RUN

On-line program changing

Possible except in ERROR mode and except in
P-RUN

Wriitng data

Possible except in ERROR mode,
however writing into D0000-D2047 is
prohibited in P-RUN.