Omron E5AC, Communications Manual

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2 CompoWay/F Communications Procedures
2 - 20
E5@C Digital Temperature Controllers Communications Manual (H175)
“operation error” will be generated. (These settings are the same as the ones used when “FACT”
is selected for the setting data's set value initialization.)
• Alarm Latch Cancel
The applicable alarm latch can be cleared with the related information setting. The setting can be
accepted in both setup area 0 and setup area 1. An operation error will occur if communications
writing is disabled or if an non-volatile memory error occurs.
• Invert Direct/Reverse Operation
Inverting or not inverting direct/reverse operation can be selected with the related information
setting. The setting can be accepted in both setup area 0 and setup area 1. The related
information specifications are written to non-volatile memory according to the write mode settings.
An operation error will occur in the following situations:
• When AT is being executed.
• When inverting direct/reverse operation is set for an event input.
• When executed in manual mode.
• Program Start
The simple program function can be reset/started with the related information setting. The setting
can be accepted in both setup area 0 and setup area 1. An operation error will be generated if
program start has been set in the event input.
• 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/STOP 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 operations 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 Setting area 1
Control in progress
Control stopped.
“Move-to-setting
area 1” command