Save Ram Data - Omron E5AR-T User Manual

Section 7 Modbus Communications
Response

■ Save RAM Data

Command
7-28
To use this command, the communications writing function must be
enabled using the Communications Writing operation command.
Write mode
When communications are used to write set values in
the Operation, Program Setting, Adjustment, Adjust-
Backup Mode 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.
RAM Write Mode
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.
When the write mode is changed from RAM Write Mode to Backup
Mode, the set values in the Operation, Program Setting, Adjustment,
Adjustment 2, Alarm Set Setting, PID Setting, Time Signal Setting, and
Approximation Setting Levels are written to EEPROM. Each level is
described in 4.1 Setting Levels and Key Operations (P. 4-2).
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 Operation, Pro-
Important
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.
Slave Function Write start Operation
address code address code information
H'06 H'00 H'00 H'04
1 1 2 2
The response for a normal end is shown above. For information on
error responses, refer to 7.7 Operation Commands (P. 7-15).
Slave Function Write start Operation
address code address code information
H'06 H'00 H'00 H'05
1 1 2 2
This command writes the set values in the Operation and Adjustment
Levels to EEPROM. Operation and Adjustment Levels are described
in 4.1 Setting Levels and Key Operations (P. 4-2).
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.
Description
Related
CRC-16
2
Related
CRC-16
H'00
2