Adding/Editing Sensors

Enter the system name for the sensor you wish to add. For example, a valid sensor system name for a LocoNet layout could be LS456. Another example, a valid internal sensor system name could be IS123. The optional user name can be anything you wish to describe the sensor. See "Names" help page for more information.

Hardware Specific Information

NCE AIU Number to JMRI Sensor Mapping

The NCE Axiliary Input Unit or AIU allows the NCE command station to check the status of inputs from the layout. These are referenced in JMRI as sensors with names like "NS785". "NS" means "NCE Sensor", and 785 is the number of a specific sensor input.

The sensor number can be found by using the following formula:

Sensor ID = (AIU Cab Address - 1) * 16 + (Pin Number On AIU) -1

For example: The AIU cab address is set to 50 and one of the BD20s is connected to pin 2. Therefore the Sensor ID would be:

Sensor ID = (50 - 1) * 16 + (2) -1

Sensor ID = 785


Grapevine Sensor to JMRI Sensor Mapping

There are three separate types of Grapevine sensors:
Advanced Serial Detectors
Up to three Advanced Serial Detector boards can be attached to a Grapevine node. Each provides eight occupancy detectors, and associates a motion detector with each of those.
BoardOccupancyMotion
Master 1-8 9-16
Slave 117-2425-32
Slave 233-4041-48
Original Serial Sensors
Occupancy sensors on the original serial boards replace sensors attached through advanced boards at addresses 1 to 8. There are no motion sensors in this case.
Parallel Sensors
The parallel sensors, connectors on the Grapevine node itself, appear as JMRI sensors 101 to 108 on the node. If the optional second bank of serial sensors are present, they appear as sensors 109 to 116 on the node.