Specifications
2 - 21
2 CompoWay/F Communications Procedures
E5C-T Digital Controllers Programmable Type Communications Manual (H186)
2-3 Detailed Description of the Services
2
2-3-8 Operation Command
• When AT is being executed.
• When inverting direct/reverse operation is set for an event input.
• When executed in manual mode.
• 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 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.
• Hold
Turn the hold operation ON or OFF with the related information setting. This command can be
accepted in setup area 0 only. 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. This command can be accepted in
setup area 0 only. 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
Power ON
Software reset command
Setting area 0
Setting area 1
Control in progress
Control stopped.
“Move-to-setting
area 1” command