Control Solutions’ AddMe Lite Model AMJR-14-SB Programmable I/O for BACnet MS/TP is a BACnet Application Specific Controller (B-ASC) with 14 I/O points and programmable control. The AMJR-14-SB features 12 analog/universal inputs with configurable type and scaling. You can individually configure each universal input for 10-bit fast analog or discrete input. The AddMe Lite also includes 2 discrete outputs and 2 discrete inputs with pulse count capability to 5kHz.

Analog Input objects provide data from the analog I/O points. Linearization tables are provided for 3K, 10K and 20K type II, III, and IV thermistors. Input type and scaling is configured by writing to BACnet object properties. Additional uncommitted writeable objects are available for data exchange with the user program.

Feature Highlights
• 12 Analog/Universal Inputs, 10-bit, Configurable as 0-10VDC, Thermistor, Dry Contact
• Pulse Count on 2 Analog/Universal Inputs
• 2 Discrete Outputs, Open Drain FET, 1A @ 30VDC
• BACnet MS/TP 9600 to 76,800 Baud

AMJR-14-SB Programmable I/O for BACnet MS/TP

AddMe® Lite AMJR-14-SB Network I/O for BACnet MS/TP

This product has been discontinued. Contact technical support for recommended alternatives.


Control Solutions’ AddMe Lite features 12 inputs which accept analog input from thermistors or 0-10V sensors, or discrete input from dry contact switches. AddMe Lite also provides 2 discrete outputs which can sink 1A at 24VDC.

Analog Input objects provide data from the analog I/O points. Linearization tables are provided for 10K and 20K type II, III, and IV thermistors. Input type and scaling is configured by writing to object properties. Binary Output objects provide BACnet access to the outputs. An additional 60 writeable Multistate Input objects are available for use by the user's program.

The AMJR-14-SB configuration tool connects to the MS/TP network using the MTX002 MS/TP to USB adapter (if not using a BACnet IP router). This intelligent adapter plugs into your PC's USB port, and offloads the MS/TP token passing from the PC to make it more reliable. The MTX002 allows you to connect your PC to an MS/TP network running at 76800 baud, something not possible with a generic RS-485 port adapter.

The MTX002 functions as an MS/TP device itself. The combination of the MTX002 and configuration tool running on your PC will appear on the network as a discoverable BACnet device. The diagnostic section in the configuration tool can be used to read and write any objects in any MS/TP device on the network. The configuration tool provides a template for reading and writing the multiple properties per BACnet object that define its configuration or client/server mapping. All configuration parameters exist as properties of BACnet objects which are accessible to any BACnet client. The Control Solutions configuration tool simpy provides a user friendly template for accessing those properties.

Screen shot from AMJR-SB Programmable I/O for BACnet MS/TP configuration tool

The AMJR-14-SB Configuration Tool is a user friendly configuration tool that provides a simple template for assigning the BACnet object properties that configure the device. Connect the AMJR-14-SB to your laptop via a USB to MS/TP adapter (MTX002) or via a BACnet IP router.

i.CanDrawIt® is available at no additional cost for use with AddMe Lite controllers from Control Solutions. i.CanDrawIt® works just like an electrical schematic CAD program, except you draw control programs that look like circuits. The resulting software will function like the circuit you draw. i.CanDrawIt® includes visual program simulation as well as visual live debugging where supported by the target device. Set breakpoints or step through the program one visual function block at a time. Update variables and I/O objects in simulation or live.


AMJR-14-SB Features

• 12 Analog/universal inputs
    • 0-10VDC, Thermistor, dry contact
    • Software selectable input type
    • 10-bit resolution
    • 2 channels capable of pulse count input
• 2 Discrete outputs
    • Open drain FET, 1A @ 24V current sink
• BACnet MS/TP Slave
• Supports 9600, 19200, 38400, and 76800 baud
• Powered by 10-30VDC or 24VAC 50/60 Hz
• Power Consumption:
    • 0.15A @ 24VDC max.
• DIN rail mounting, 100mm H x 70mm W x 60mm D
• Pluggable screw terminal blocks
• -40C to +70C, 5%-95% RH non-condensing
• Certifications: FCC, CE

Objects Provided
• 40 Analog Input (20 uncommitted, writeable)
• 2 Binary Output (commandable)
• 60 Multistate Input (60 uncommitted, writeable)
• 1 Device
• 2 File
• 1 Program


• AMJR-14-SB Support Package
Contains configuration tool software, USB driver, documentation. (AM3-SB package covers both)

• Download Copy of AMJR-14-SB Online Help

• BACnet Tutorial
Introduction to BACnet

Our most extensive technical support is provided by the same engineering staff that developed the products. Your personal attention from this staff is available via the support ticket system.

No user/password is required to open a new ticket. Once you open a ticket, you will immediately receive an email with your ticket number. Your ticket number becomes your login to review your ticket(s) later. Click the Support Ticket icon anywhere you see it. (If you do not get an email with your ticket number, within minutes, check your junk folder, spam settings, etc, and try again if necessary.)

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