Wavetronix SmartSensor Advance Extended Range (SS-200E) - User Guide - Manual (Page 82)

CHAPTER 7 • CHANNELS-ALERTS-ZONES 81
Normal channels consist of four alerts, each containing four zones. A normal channel’s
output is a logical combination of the channel’s alert, zone, delay and extend settings (see
Delay and Extend sections under Latched Channels). The normal channel’s output becomes
active when the associated alert and zone logic, the channel delay or the channel extend are
satisfied.
Each enabled normal channel must have at least one enabled alert. If you attempt to save an
invalid channel configuration, the following message is displayed (see Figure 7.13).
Figure 7.13 – Invalid Channel Configuration
Latched Channel
Latched channels consist of two alerts (ON and OFF), each containing up to four zones (see
Figure 7.14). A latched channel, by definition, has exactly two enabled alerts that cannot be
disabled.
Channel 1
ON
Alert
OFF
Alert
Zone
1
Zone
2
Zone
3
Zone
4
Zone
1
Zone
2
Zone
3
Zone
4
Figure 7.14 – Latched Channel Hierarchy
Latched channels differ from normal channels in that the channel output remains in a given
state until a contradictory alert is exclusively activated, or a maximum latch time has ex-
pired (see Figure 7.15).