Chapter 5. FUNCTIONS

Events 1 to 3

Events 1 to 3 are event configuration data. These are used after setting the event type, event standby, hysteresis and ON delay time.

A total of three event types are available: PV type events, controller status events, and time events.

PV type events

Basic specifications

The following page shows event type PV, deviation, absolute value deviation, SP, MV and MFB. In the figures, the thick lines show ON-OFF changes in state. The upper line expresses the ON state, and the lower line the OFF state.

EV and H stand for event setting value and hysteresis, respectively. Output in the READY state is OFF.

Event standby

Events function as follows when event standby has been set to ON.

-If the controller is in the state in the figure when changing from the READY to the RUN mode and after restoring the power, operation is the same as when event standby is set to OFF. The up-facing arrow in the figure indicates a change to ON, and a down-facing arrow indicates a change to OFF.

-If the controller is outside the state in the figure when changing from the READY to the RUN mode and after restoring the power, the state is OFF. After entering the state, the up-facing arrow in the figure indicates a change to ON, and a down- facing arrow indicates a change to OFF.

Event ON delay

The event No. to apply the delay to and the delay time can be set regardless of event type. “Delay” functions to turn output ON when the event is continuously ON for the preset delay time after the event OFFON condition is satisfied.

When event ON delay is combined with event standby, event standby must first be canceled before event ON delay functions.

Segment progression

-Output is OFF until the program progresses to the segment containing the event setting.

-When the program progresses to the segment containing the event setting, event ON/ OFF operation is carried out according to the event setting value.

-The previous setting is valid until the program progresses to a segment containing a new event setting.

For this reason, set as follows to disable the event set in the previous segment from a certain segment onwards:

Direct action events: Upper limit value of event setting

Reverse action events: Lower limit value of event setting

Note, however, that some types of event turn ON even if events are set as shown above.

-When the program has progressed to the No.1 segment by the cycle or pattern link functions, the previous setting is disabled. Output is OFF unless the No.1 segment contains an event setting.

Other

On 5G output models, when setup data C 1 8 is set to 1, and SP output (programmer functions) is selected, the MV direct/reverse event does not function.

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Sonic Alert DCP301 user manual Events 1 to, PV type events