Concept
Loop Devices
Loop devices provide functionality for fire detection, smoke detection, input, output, and other necessary features.
Loop devices are installed, configured, and added to a loop in the fire detection system. Examples of loop devices are smoke detectors, multicritera detectors, and I/O modules.
About Loop Controllers
There are five main types of loop controller boards that can be added to an FDP panel.
For more information, see About loop controllers .
ALC, SLC, ELC, and LC input functions
Examples of ALC, SLC, ELC and LC input functions are Day mode enable input, Manual call point, and Zone disablement input.
For more information, see ALC, SLC, ELC and LC input functions .
ALC, SLC, ELC, and LC output function and output function 2
Among ALC, SLC, ELC, and LC output functions and output functions 2 are Fire alarm output, Disablement output, and External logic output.
For more information, see ALC, SLC, ELC and LC output function and output function 2 .
Loop Device Commands
The commands on a loop device are used to enable/disable the device, update values, and perform tests.
For more information, see Loop Device Commands .
Alarms and States
In a fire detection system, there are different types of alarms, faults, maintenances, tests, and disablements. Various causes generate these alarms and changes in device states.
For more information, see Alarms and states .
Requests
In an EcoStruxure Fire Operation setup, requests are used with schedules, Function Blocks, and Script Programs to automatically change state and behaviour of objects such as FDPs, loops, and zones.
For more information, see Requests .
A loop device has an output test mode that you activate to perform tests on the device.
For more information, see Loop Device Output Test Mode .
ALC, SLC, ELC and LC input functions
ALC, SLC, ELC and LC output function and output function 2
Loop Device Commands
Alarms and states
Requests
Loop Device Output Test Mode
Loop Device ALC Properties – Basic Tab
Loop Device CLC Properties – Basic Tab
Loop Device ELC Properties – Basic Tab
Loop Device SLC Properties – Basic Tab