Omron E5CN-H Communications Manual page 97

SECTION 5 Modbus Communications Procedure
5-18
Write mode
Backup mode
RAM write mode
• 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.
● 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.
When this move is carried out from setup area 0, the display indicates
the "input type" in the "initial setting level." When this operation
command is executed in setup area 1, the display will not change.
● Move to Protect Level
This command moves to the "protect level" and can be accepted only in
setup area 0. When this command is issued in setup area 1, an
"operation error" will be generated, and the move to the protect level will
be prohibited.
Description
The data is written to EEPROM when a parameter
in the operation, adjustment, bank setting, or PID
setting level (excluding read-only parameters) is
written using communications.
The data is not written to EEPROM when a param-
eter in the operation, adjustment, bank setting, or
PID setting level (excluding read-only parameters)
is written using communications. Parameters can
be changed by using key operations on the front
panel of the Controller.