Concept
MS/TP BACnet Field Controllers
MS/TP BACnet field controllers provide the outputs to actuate the dampers and control the fans for the system when the equipment is distributed throughout a facility. The MS/TP BACnet field controllers for the smoke control system are listed here.
b3608-S and b3624-S
The b3600-S series includes the b3608-S and b3624-S controllers. The b3600-S series is suited for small or large groups of inputs that require monitoring in a concentrated area. The unit allows you to configure any universal input as a supervised input for monitoring open wires or short circuits. The b3608 provides 8 universal (0-5 V) inputs, while the b3624 provides 24 universal inputs. The b3600-S series communicates with the Smoke Control Servers and other MS/TP controllers using the BACnet MS/TP network. You can use the b3600-S series in either dedicated or non-dedicated smoke control applications.
The b3800-S series includes the b3800-S and b3804-S controllers. The b3800-S series are suited for small Air Handling Unit control. The b3800 provides 8 universal inputs, 1 Smart/Room Sensor and 8 DO outputs (Relay). The b3804 provides 8 universal Inputs, 1 Smart/Room Sensor, 4 DO outputs (Relay) and 4 analog outputs. The b3800-S series communicates with the Smoke Control Servers and other MS/TP controllers using the BACnet MS/TP network. You can use the b3800-S series in either dedicated or non-dedicated smoke control applications.
b3850-S, b3851-S and b3853-S
The b3850-S series includes the b3850-S, b3851-S, and the b3853-S controllers. The b3850-S series controllers are suited for VAV applications with external actuators. If additional I/O points are required, the I/O expansion port provides the link and modular power for those points. The b3853 is designed for dual-duct VAV applications requiring two airflow sensors. The I/O configurations are presented in the table that follows.
|
Configuration |
b3850-S |
b3851-S |
b3853-S |
|
UI (0-5 Volt) 10bit |
4 |
4 |
4 |
|
Smart Sensor/Room Sensor |
1 |
1 |
1 |
|
Air flow sensor |
1 |
- |
2 |
|
DO – Form A relay (3A 24 VAC) |
3 |
3 |
3 |
|
DO – TriState form K (3A 24 VAC) |
1 |
1 |
1 |
|
Expansion I/O port (xP Modules) |
Yes |
Yes |
Yes |
Examples of equipment controlled by b3850-S series controllers include VAV boxes, fan coil units, and stairwell fans. The b3850-S series communicates with the Smoke Control Servers and other BACnet MS/TP controllers using the BACnet MS/TP network. You can use the b3850-S series in either dedicated or non-dedicated smoke control applications.
b3865-S, b3866-S and b3885-S
The b3865 and b3866 are full-featured VAV controllers that come equipped with a built-in actuator. Compared to the b3885, the b3865 series provides more I/O to handle the full range of VAV applications. The I/O configurations are shown in the following table.
|
Configuration |
b3865-S |
b3866-S |
b3885-S |
|
UI (0-5 Volt) 10bit |
4 |
4 |
2 |
|
Smart Sensor/Room Sensor |
1 |
1 |
- |
|
Air flow sensor (0-2”) |
1 |
1 |
1 |
|
Damper actuator |
1 |
1 |
1 |
|
DO – Form A Triac (0.5A 24 VAC) |
3 |
3 |
3 |
|
AO – (0-10 Volt) 8bit |
- |
2 |
- |
|
Expansion I/O port |
- |
- |
- |
These MS/TP controllers communicate with the Smoke Control Servers and other MS/TP controllers using the BACnet MS/TP network. These models are typically applied to non-dedicated smoke control VAV applications.
These three models are replaced by the b3865-V-S, b3866-V-S, and b3885-V-S for new system installations. The -V-S versions are discussed in the following subsections. The discontinued models are listed here because you may frequently encounter them when expanding existing systems with the EocStruxure BMS Smoke Control System. They are supported with the system listing as detailed in this guide.
b3865-V-S, b3866-V-S and b3885-V-S
These MS/TP controllers are used for VAV box control. The b3865-V-S and b3866-V-S are full-featured VAV controllers that come equipped with a built-in actuator. The I/O configurations are shown in the following table.
|
Configurations |
b3865-V-S |
b3866-V-S |
b3885-V-S |
|
UI (0-5 Volt) 10bit |
4 |
4 |
2 |
|
Smart Sensor/Room Sensor |
1 |
1 |
- |
|
Air flow sensor (0-1”) |
1 |
1 |
1 |
|
Damper actuator |
1 |
1 |
1 |
|
DO Form A Triac (0.5A 24 VAC) |
3 |
3 |
3 |
|
AO – (0-10 Volt) 8bit |
- |
2 |
- |
These models communicate with the Smoke Control Servers and other MS/TP controllers and a Smart Sensor using the BACnet MS/TP network. They are typically applied to non-dedicated smoke control applications (VAV). The b3885-V includes a reduced I/O point count for smaller VAV applications.
These three models replace the three previously-listed models with the same model designation, without the -V suffix. However, you may still encounter the previous three models in earlier systems when upgrading to the EcoStruxure BMS Smoke Control System.
b3867-S
The b3867 is a compact terminal controller that provides DDC control of package units, heat pumps, unit ventilators, and other terminal unit applications. The I/O configuration is shown in the following table.
|
Configuration |
b3867-S |
|
UI (0-5 Volt) 10bit |
4 |
|
Smart Sensor/Room Sensor |
1 |
|
DO – Form A Triac (0.5A 24 VAC) |
5 |
|
AO – (0-10 Volt) 8bit |
2 |
|
Expansion I/O port |
- |
The b3867-S communicates with the Smoke Control Servers and other MS/TP controllers using the BACnet MS/TP network. You can use the b3867-S in both dedicated or non-dedicated smoke control applications. The b3867-S controllers have a built-in tri-state output for connection to an external actuator for direct damper control.
b3920-S
The b3920-S controller controls large pieces of equipment, such as an AHU (Air Handling Unit), or several smaller pieces of equipment, such as smoke dampers. The I/O configuration is shown in the following table.
|
Configuration |
b3920-S |
|
UI (0-10 Volt) 12bit |
16 |
|
Smart Sensor/Room Sensor |
1 |
|
DO – Form C Relay (3A 24 VAC) |
8 |
|
AO – (0-10 V/0-20ma) 8bit |
8 |
|
Expansion I/O port |
Yes |
The b3920-S communicates with the Smoke Control servers and other MS/TP controllers using the BACnet MS/TP network. You can use the b3920- S in either dedicated or non-dedicated smoke control applications.
MNB-300
The I/A Series MNB-300 MS/TP Unitary Controller is an interoperable controller with native BACnet MS/TP communications support. It includes a controller LED status and output indication, and a panel mount sub-base with removable electronics module. The I/O configuration is listed in the following table.
|
Configuration |
MNB-300 |
|
UI (Therm, 0-5V,DI) |
6 |
|
S-Link sensor |
1 |
|
DO – Form A Triac (0.5A 24 VAC) |
6 |
|
AO – (0-10V/0-20ma) |
3 |
The controller is typically applied to applications such as packaged rooftop, heat pump, fan coil, unit ventilator, and similar applications. The MNB-300 communicates with the Smoke Control Servers and other MS/TP controllers using the BACnet MS/TP network. You can use the MNB-300 in either dedicated or non-dedicated smoke control applications.
MNB-V1-2 and MNB-V2-2
The MNB-V1-2 and MNB-V2-2 are I/A series interoperable controllers with native BACnet MS/TP communications support. They are designed for VAV (Variable Air Volume) applications and incorporate an integral rotary damper actuator with manual override, an integral pressure transducer, and a collection of I/O as listed here.
|
Configuration |
MNB-V1-2 |
MNB-V2-2 |
|
UI (Therm, 0-5V,DI) |
3 |
3 |
|
MN-SX Room Sensor |
1 |
1 |
|
DO – Form A Triac (0.5A 24Vac) |
- |
3 |
|
AO – (0-10V/0-20ma) |
- |
1 |
|
Vel Pressure Sensor (0-1.5”) |
1 |
1 |
The units provide an LED status indication and over-the-shaft damper mounting. They also provide a range of control strategies for pressure-dependent and pressure-independent terminal boxes with or without reheat capabilities. The MNB-Vx-2 communicates with the Smoke Control Servers and other MS/TP controllers using the BACnet MS/TP network. The MNB-Vx-2 is typically applied to non-dedicated smoke control applications.
xP Series I/O Expansion Modules
The xPDI8-S, xPDO2-S, xPDO4-S, xPUI4-S I/O expansion modules are available options for the b3 series controller models (b3850-S, b3851-S, b3853-S and b3920-S) and the i2 Infinet series controller models (i2850-S, i2852-S, and i2920-S). The xDI8-S provides 8 digital inputs for monitoring field contacts. The xPDO2-S provides 2 digital outputs, while the xPD04-S provides 4 digital outputs. The digital outputs are in the form of relay contact outputs. The xPUI4-S provides four universal inputs for monitoring contact inputs or analog voltage inputs.
Up to two of the xP-S series expansion modules plug directly on to the designated b3 or i2 models and receive direction from the b3 or i2 controller. These modules allow the controller to handle larger devices requiring more control and monitoring points, or larger quantities of simple equipment, such as isolation dampers and stairwell fans. Together with the parent controller (listed previously), you can use the xP modules in either dedicated or non-dedicated smoke control applications.
EcoStruxure BMS Hardware Overview
EcoStruxure BMS Overview
MS/TP Network Accessories
Transformers