Wavetronix SmartSensor Advance Extended Range (SS-200E) - Use Manual do Utilizador descarregar pdf (Página 83)

82 CHAPTER 7  CHANNELS-ALERTS-ZONES

Latched

Channel

output

Alert

OFF

Alert

Figure 7.15 – Latched Channels

For example, a channel’s output will become activated when an ON alert is triggered and

will latch (stay active) even when the ON alert is no longer triggered. Subsequently, if an

OFF alert is triggered, the channel output will be deactivated as soon as all other timing

conditions are satised (e.g. the minimum ON time, channel extend).

Note

When changing a normal channel to a latched channel, alerts 1 and 2 will be used as

the ON and OFF alerts, respectively (alerts 3 and 4 will be disabled).

Delay

e channel delay is used to ignore alert outputs that are shorter than the specied delay

time (see Figure 7.16). Latched channels do not activate outputs until the delay require-

ments have been met (only a channel’s alert and zone logic are applied during the delay

period).

Delay

Channel

output

Alert

Figure 7.16 – Channel Delay

Extend

e extend feature is used to continue a channel output aer the required conditions have

been met (see Figure 7.17). For example, if a vehicle enters a zone and activates the channel

output, that channel would remain ON for a specied extend time aer the vehicle leaves

the zone.

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Wavetronix SmartSensor Advance Extended Range (SS-200E) - Use Manual do Utilizador Página 83