Model AM3-SB Programmable I/O for BACnet 18 Analog/Universal Inputs 4 Analog Outputs 8 Discrete Outputs 2 Discrete/Pulse Inputs BACnet MS/TP Slave

Control Solutions’ AddMe III features 18 universal inputs which are context sensitive. When configured as an analog input, the continuously self-calibrating sigma-delta converter produces 15-bit resolution with high noise immunity. When configured as a discrete input, the converter switches to 8-bit resolution at 128 samples per second for fast response. All I/O points are accessed as BACnet objects.

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. Analog and 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.

• 18 Analog/universal inputs
- - - 0-10VDC, Thermistor, dry contact
- - - Software selectable input type
- - - 0.1% reference, up to 16-bit resolution
- - - Continuously self-calibrating sigma-delta converter
• 4 Analog outputs
- - - 4-20mA (0-20mA)
- - - 8-bit resolution
• 8 Discrete outputs
- - - Form A relay, 5A @ 120VAC
- - - HOA switches & LED status indicators
• 2 Pulse/Discrete inputs
- - - TTL to 24VDC
- - - Rate or totalizing count input
• BACnet MS/TP Slave
• Supports 9600, 19200, 38400, 76800 baud
• Powered by 18-30VDC or 24VAC 50/60 Hz
• Power Consumption:
- - - 0.3A @ 24VDC max.
• DIN rail mounting, 100mm H x 155mm W x 60mm D
• LED indicators for power, RS-485 RX, TX & error
• Pluggable screw terminal blocks
• Operating temperature -30°C to +70°C
• Humidity 5% to 90%
• FCC Class A, CE Mark

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