Omron E5AN Communications Manual

Modbus
5.4 Detailed Description of the Services
5-17
• When 40% AT is specified during 100% AT execution.
• When 100% AT is specified during 40% AT execution.
In addition, a parameter error will occur if 40% AT execution is specified
during heating and cooling control.
Note: If the same type of AT execution is specified during AT execution
(e.g., if 100% AT execution is specified during 100% AT
execution), the AT will not be restarted and the operation will end
in normal completion with no processing.
● Write Mode
Set either “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.
• When the mode is switched from RAM write mode to backup mode, the
parameters in the operation/adjustment levels (excluding read-only
parameters) are written to EEPROM.
• The RAM write mode is enabled only when the Communications
Writing parameter is set to “ON” (enabled).
Consequently, when the Communications Writing parameter setting is
changed to “OFF” (disabled), the parameters in the operation/
adjustment levels (excluding read-only parameters) are written to
EEPROM even if the RAM write mode is set to “disabled.”
● RAM Data
This command writes the parameters in the operation/adjustment levels
(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.
Write mode Description
Backup mode The data is written to EEPROM when the parame-
ters in the operation/adjustment levels (excluding
read-only parameters) are written by communica-
tions.
RAM write mode The data is not written to EEPROM when the
parameters in the operation/adjustment levels
(excluding read-only parameters) are written by
communications.
Parameters can be changed by operating the keys
on the front panel of the controller.

Omron E5AN Specifications

General

Brand	Omron
Model	E5AN
Category	Temperature Controller
Language	English