Operating Instructions

Chapter 1 – Product Overview
Hardware Inputs
6
Siemens Industry, Inc. Owner's Manual 125-5069
2014-09-03
Chapter 1 – Product Overview
The Siemens BACnet PTEC Dual Duct 2 AVS Controller is the Siemens Industry FLN
controller used in pressure independent Variable Air Volume and Constant Volume
applications. It provides Direct Digital Control (DDC) for a number of applications.
 The controller can operate as an independent, stand-alone, DDC room controller or
it can be networked with a field panel.
 The controller provides all termination, input/output, system and local
communication connections.
 The controller hardware consists of the controller with cover and mounting bracket
(See Figure Siemens BACnet PTEC Dual Duct 2 AVS Controller).
The following applications are covered:
 Constant Volume - Two Inlet Sensors with Optional Reheat (Application 6665)
 Constant Volume - One Inlet and One Outlet Sensor with Optional Reheat
(Application 6666)
 Variable Air Volume – Two Inlet Sensors with Optional Reheat (Application 6667)
 Variable Air Volume – One Inlet and One Outlet Sensor with Optional Reheat
(Application 6668)
 Variable Air Volume with Changeover (Application 6669)
 Slave Mode (Application 6693)
Programmability
The Programmable BACnet TEC (PTEC) tool allows the introduction of custom PPCL
into a BACnet TEC. This software allows you to create your own custom application
and is used to add, remove, modify, back up and restore BACnet Programmable
TECs.
Standard BACnet TEC applications reside in the PTEC and can run alongside the
custom PPCL. It is important that BACnet TEC custom PPCL applications command
points at priority 15 or higher.
The custom PPCL can be used one of the following ways:
 With the PTEC in slave mode, it is controlled exclusively by the custom PPCL.
 PPCL can be used to exclusively control spare I/O.
 With a standard PTEC application running, custom PPCL can command points at a
higher priority which will override points in the application.
Our workstation and tool view the PTEC as a regular BACnet TEC.