Omron MX2 Series - EEPROM Write Mode

8 Communications Functions
8 - 23
Multi-function Compact Inverter 3G3MX2-EV2 User’s Manual (I666-E1)
EEPROM write mode
enabled
902 hex = 1
Parameter change
Parameter change
• To set the EEPROM write mode, use the Write to Holding Register (06 hex) command etc. to write 1
to the holding register for the EEPROM write mode (0902 hex).
• In the EEPROM write mode, the data changed by the Write to Holding Register (06 hex) command is
written to both the RAM (volatile memory for operation) and the EEPROM (non-volatile memory for
storage). Then, the EEPROM write mode is canceled.
• The EEPROM write mode is canceled also if a command other than the Write to Holding Register (06
hex) command is received in the EEPROM write mode.
⚫ Difference between enter command and EEPROM write mode
Enter command EEPROM write mode
Master
3G3MX2-EV2
Master
3G3MX2-EV2
EEPROM write mode is
enabled only for a single
parameter change oper-
ation.
8-6-2 EEPROM Write Mode
Writes data to RAM
Writes data to RAM
Writes data to RAM and
EEPROM (changed data only)
8
Parameter change
Parameter change
Parameter change
Enter command
900 hex = 1
Writes data to RAM
Writes all data to
EEPROM
8-6 Saving a Change to Holding Register (Enter Command)
8-6-2 EEPROM Write Mode
Writes data to RAM