Omron E5CN-HT Communications Manual page 92

SECTION 4 Modbus Communications Procedure
4-18
• RAM write mode is enabled only when communications are enabled in
the Communications Writing parameter (i.e., set to ON). Therefore, if
the Communications Writing parameter is changed to OFF (disabled),
the parameter settings from the operation, adjustment, program setting,
and PID setting levels (excluding read-only parameters) are written to
non-volatile memory even if the RAM write mode is set.
● RAM Data
This command writes the parameters in the operation, adjustment,
program setting, and PID setting levels (excluding read-only param-
eters) to non-volatile memory. 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.
● Auto/Manual Switch
This operation command switches the mode to manual mode or
automatic mode, based on the related information setting. This
command can be accepted in setup area 0 only. An "operation error"
will be generated in the following instances:
• When the command is executed in "Setup Area 1"
• When auto/manual switching is disabled (not displayed)
When the Controller is switched to manual mode, the "manual manipu-
lated variable" will be displayed. When the Controller is switched from
manual mode to automatic mode, the operation level's first parameter
will be displayed. When the Controller is switched to manual mode