Control-By-Event (CBE)Operation 4. OperationAFP-100/AFP-100E Instruction PN 51010:C1 02/06/2002 65Control-By-Event (CBE)OperationEach addressable detector and monitor module can be assigned to one software alarm zone. Controlmodules may be assigned to a maximum of three software zones. A general alarm zone (Z00) may belisted for output (control) points, but it is not necessary to list Z00 for input points, as this is the defaultzone. Z00 is not activated by supervisory points.When an input device (detector, monitor module) alarms and is not disabled, it activates all softwarezones assigned to it. An output device (control module or NAC) that is not disabled is turned on whenany of the software zones, to which it is mapped, become active.Note: For more information on CBE operation, refer to "Appendix C: Software Zones" on page 80î.Detector FunctionsMaintenance AlertEach detector is monitored by the control panel for its maintenance status. If a detector is within 80% ofits alarm threshold for a 24-hour period, a ìMaintenance Alertî message will be automaticallydisplayed, signaling that the detector needs servicing.Automatic Test OperationAn automatic test of each detector is performed every 2 hours. The detector's sensing chamber andelectronics are functionally tested for normal, safe operation. A trouble message is displayed uponfailure of this test. You can also clear this trouble by pressing the SYSTEM RESET key.Type Code SupervisionThe control panel monitors hardware device type codes at slow intervals. Mismatch of any type code,compared to the system program, will cause a device trouble.System Alarm VerificationYou can also program the control panel to perform alarm verification to detectors. Refer to "AlarmVerification (None or 73 Seconds)" on page 67 for a description of the Alarm Verification Timer.Time Functions: Real-time ClockThe control panel includes a crystal-based clock that provides time of day, date and day of week. Timeis displayed as 12 hour time with month/day/year and is stored in RAM. If both AC and battery powerare lost, the time must be reset.Technical Manuals Online! - http://www.tech-man.com