Application

Sequence of Operation
Auto Discovery
7
Siemens Industry, Inc.
BACnet LCM-OAVS, Application 6754
140-1325
2015-07-07
Auto Discovery
Auto Discovery allows you to automatically discover and identify PTEC/ATEC
controllers on the BACnet MS/TP Network. There are two basic configurations:
 Devices not configured with an address. (Devices are discovered by their unique
serial number.)
 Devices configured with an address and available for modification.
Auto Addressing
Auto Addressing allows you to automatically assign device addresses to a
PTEC/ATEC controller on the BACnet MS/TP Network. If a controller is not configured
with a MAC address, you have the option to auto-address or manually address the
controller. During this time the baud rate is automatically detected by the controller.
Controller(s) must be connected on the BACnet/IP network in order for automatic
addressing to occur.
Hardware Inputs
Analog
 Air velocity sensor (s) – (one or two depending on setup)
 Fume hood controller input or FFM
 Room temperature sensor
Digital
 Occupancy button (option on room temperature sensor)

(Optional) Occupancy switch

(Optional) Alarm switch
Hardware Outputs
Analog
 Reheat valve
 General exhaust Venturi Air Valve
Digital
 Autozero Solenoid in Offboard Air Module (DO 8)

(Optional) Alarm
 Supply damper (two DOs)
Ordering Notes
570-805PA
BACnet LCM-OAVS Room Pressurization with Slow-acting Supply Damper,
Venturi Exhaust Actuation and Hot Water Reheat
Requires Offboard Air Module(s) – order and ship separately
550-819B
Offboard Air Module (OAM) – order and ship separately