Omron E5AR-T User Manual page 188

This command is used to select the Backup Mode or RAM Write
Mode.
The default setting is "Backup Mode."
This command can be used in both setting area 0 and setting area 1.
To use this command, the communications writing function must be
enabled using the Communications Writing operation command.
Write mode
Backup Mode
RAM Write Mode
When the write mode is changed from RAM Write Mode to Backup
Mode, the set values in the Operation Level, Program Setting Level,
Adjustment Level, Adjustment 2 Level, Alarm Set Setting Level, PID
Setting Level, Time Signal Setting Level, and Approximation Setting
Level are written to EEPROM. Each level is described in 4.1 Setting
Levels and Key Operations (P. 4-2).
Important
MRC SRC
Response
"30" "05"
Response Codes:
The response for a normal end is shown above. For the
response codes, refer to 6.7 Operation Commands (P. 6-13).
6.9 Commands and Responses
Description
When communications are used to write set values in
the Operation, Program Setting, Adjustment, Adjust-
ment 2, Alarm Set Setting, PID Setting, Time Signal
Setting, or Approximation Setting Level, the data is
also written to EEPROM.
When communications are used to write set values in
the Operation, Program Setting, Adjustment, Adjust-
ment 2, Alarm Set Setting, PID Setting, Time Signal
Setting, or Approximation Setting Level, the data is
not written to EEPROM.
When SP tracking or PV tracking is ON and the mode
is changed to Remote SP Mode or Manual Mode, the
SP is not written to EEPROM.
When a change is made to a parameter setting using
a key operation, the data is written to EEPROM.
The time required for RAM backup depends on the num-
ber of settings that were changed in RAM Backup Mode.
The more settings that were changed, the longer the time
required. For example, if all settings in the Operation, Pro-
gram Setting, Adjustment, Adjustment 2, Alarm Set Set-
ting, PID Setting, Time Signal Setting, and Approximation
Levels were changed, the most time would be required,
which is about 5 seconds.
Response code
"0000"
6-29