Omron E5CN-H Communications Manual page 44

● Write Mode
Set either the backup mode or RAM write mode with the related infor-
mation setting. The setting can be accepted in both setup area 0 and
setup area 1.
The number of EEPROM (non-volatile memory) write operations is
limited. Therefore, use RAM write mode when frequently overwriting
data.
Write mode
Backup mode The data is written to EEPROM when a parameter in
the operation, adjustment, bank setting, or PID set-
ting level (excluding read-only parameters) is written
using communications.
RAM write mode The data is not written to EEPROM when a parame-
ter in the operation, adjustment, bank setting, or PID
setting level (excluding read-only parameters) is writ-
ten using communications. Parameters can be
changed by using key operations on the front panel
of the Controller.
• When the mode is changed from RAM write mode to backup mode, the
parameters in the operation, adjustment, bank setting, or PID setting
level (excluding read-only parameters) are written to EEPROM.
• RAM write mode is enabled only when communications are enabled in
the Communications Writing parameter (i.e., set to ON). Therefore,
when communications are disabled in the Communications Writing
parameter (i.e., if the setting is changed to OFF), the parameters in the
operation, adjustment, bank setting, or PID setting level (excluding
read-only parameters) are written to EEPROM even if the mode is set
to RAM write mode.
● Save RAM Data
This command writes the parameters in the operation, adjustment,
bank setting, or PID setting level (excluding read-only parameters) to
EEPROM. The setting can be accepted in both setup area 0 and setup
area 1.
● Software Reset
Restarts processing from the point when power is turned ON. The
setting can be accepted in both setup area 0 and setup area 1.
● Move to Setup Area 1
This command moves to "setup area 1" and can be accepted at both
setup areas 0 and 1. If the "initial setting/communications protect" is set
to "2," an "operation error" will be generated, and the move to setup
area 1 will be prohibited.
2.3 Detailed Description of the Services
Description
2-21