Справочник Пользователя для Mitsubishi Electronics Mitsubishi Digital Electronics Welding System FX1S

FX Series Programmable Controllers

4-33

File registers can be secured in the program memory (EEPROM or EPROM) in units of 500
points. These registers can be accessed with a peripheral device. While the PLC is operating,
data in the file registers can be read to the general-use/ battery backed/ latched registers by
using the BMOV instruction.
File registers are actually setup in the parameter area of the PLC. For every block of 500 file
registers allocated and equivalent block of 500 program steps are lost.

Note: The device range for file registers in the FX

1N

, FX

2N

 and FX

2NC

 overlaps with the latched

data registers. The allocation of these devices as file registers ensures that the data is kept
with the program.

•

FX

1S

  file register data can only be changed by a peripheral device such as a hand held 

programmer or a personal computer running the appropriate software.
For details of how to carry out the changes please reference the relevant operation 
manual for guidance.

•

FX

1N

, FX

2N

 and FX

2NC

 file register data can also be changed by the program using the 

BMOV instruction.

•

No file registers can be modified during RUN.

•

Please refer to the table on page 4-33 or chapters 6 and 8, where further details of the 
availability of devices can be found.

FX

1S

FX

1N

FX

2N

FX

2NC