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MELSEC-
A
8 OTHER FUNCTIONS
(2) Timing chart
2)
3) 5)4)
1)
Carried out with sequence progra
m
Carried out by R2
R2 1C0
H
)(
EEPROM function designation
EEPROM function
request signal (RYn7)
EEPROM function
normal/error complete
signal (RXn7/RXn8)
No. Details Control side
1)
Designate the EEPROM function in the EEPROM function designation area (
R2
1C0H).
When registering the current buffer memory values as the default values, designate "0". To
return the values to the default values, designate "4".
When writing with the buffer memory automatic update function, refer to section 5.6.
When writing with the transmission/reception buffer, refer to section 5.7.4.
Program
2) The EEPROM function request signal (RYn7) turns ON. Program
3)
After the EEPROM function execution is completed, the EEPROM function normal/error complete
signal (RXn7/RXn8) turns ON.
R2
4) The EEPROM function request signal (RYn7) turns OFF. Program
5) The EEPROM function normal/error complete signal (RXn7/RXn8) turns OFF. R2
(3) Setting the buffer memory
The buffer memory items to be set for registering/initializing the R2 EEPROM are
shown below.
R2 buffer memory
address
Name Details
R2
1C0H
EEPROM function
designation
Designate the EEPROM function.
When using the buffer memory setting value registration function,
designate whether to register or initialize the buffer memory setting
values.
0 : Buffer memory setting value registration
4 : Buffer memory setting value initialization
R2
1A7H
Buffer memory default
value setting status
storage
The status of the buffer memory when the R2 is started up is stored.
0 : R2 default values (default value)
1 : Default values registered in EEPROM