Omron E5CN-HT Communications Manual page 94

SECTION 4 Modbus Communications Procedure
4-20
● Infrared Communications Use
Select ON or OFF to enable or disable using infrared communications
with the related information setting. The setting can be accepted in both
setup area 0 and setup area 1.
● Hold
Turn the hold operation ON or OFF with the related information setting.
The setting can be made only in setup area 0.
An operation error will occur in the following situations.
• When AT is being executed
• During standby status
• During a reset or when continuing control at the end of operation
• When Hold/Clear Hold is assigned to an event input
● Advance
This operation command performs the advance operation. The setting
can be made only in setup area 0.
An operation error will occur in the following situations.
• When AT is being executed
• During standby status
• During a reset or when continuing control at the end of operation
● Setting Areas
Control operation is executed in setting area 0. In this state, you can
perform operations that are permitted only during control or those that
cause no problems even if control is in progress. These operations
include reading PVs, writing SPs, and changing Run/Reset status.
Setting area 0, however, prohibits operations that affect control,
including writing data at the initial setting level. (Reading setting data is
always allowed.)
In setting area 1, control operation is stopped. In this state, you can
perform operations that are not allowed in setting area 0. These opera-
tions include writing data at the initial setting level.
At power-ON, the Digital Controller is set in setting area 0. To move to
setting area 1, use the "move-to-setting area 1" command. To return to
setting area 0, turn the power OFF and ON again, or use the "software
reset" command.
Power ON
Software reset command
Setting area 0
"Move-to-setting
area 1" command
Control in progress
Setting area 1
Control stopped.