Configurable I/O BACnet MS/TP or Modbus RTU

 

 

Product Overview

The configurable I/O modules provide universal inputs that support temperature, analog, resistance and binary in a single module. For applications not requiring universal inputs there are modules with discrete inputs that support contact closure and retentive pulse counting at 100Hz. Additional modules supply a mix of universal and/or discrete inputs with relay outputs and analog outputs. A single module supports BACnet MS/TP or Modbus RTU/ASCII with a simple dip switch selection.

The modules are housed in a compact UL approved self-extinguishing plastic enclosure, rated for operation in -10°C to +50°C (14°F to 122°F) environments and DIN rail or panel mounted typically in a control enclosure. All modules use half-wave rectified low voltage power supply that allows for sharing of power with other 24 VAC/VDC devices.

Product Details

• BACnet MS/TP and Modbus RTU/ASCII communication protocols in a single module dip switch selectable
• Universal Inputs for temp, analog, resistance, binary with up to 16-bit resolution
• Supported temperature sensors in Fahrenheit and Celsius degrees
• All Digital Inputs work as retentive counters up to 100 Hz
• Digital Outputs 24 VAC or 30 VDC max. 3 A or 8 A
• Triac Outputs: 0.5 A @ 24 VAC
• Analog Output with max. 10 VDC and 20 mA load allows control of relays or SSR with PWM
• LEDs for - inputs, outputs, power and communications status
• Removable terminal strips
• 24 V AC/DC Input Power
• DIN rail or panel mounting
• Operating temperature: -10°C to 50°C (14°F to 122°F)
• Ingress Protection Rating: IP40 – for indoor installation
• Manual output override switches on 4 and 8 point units
• Built-in light, cooling and heating control modes (select units)
• Simple and fast addressing from 1 to 99

Configuration Software

The iSMA Configurator has been designed to perform configuration, firmware updates and diagnostics on the configurable I/O. The free downloadable software provides communication with the use of USB, BACnet MS/TP, Modbus RTU, BACnet IP or Modbus TCP. It allows monitoring the device's operating parameters, remote change of I/O module output states and input modes. This simple and intuitive to use software is the convenient tool for every configurable I/O user. This software is intended for Windows operating system and can be run on Windows 7, 8 or 10. There is no need to install any additional software or drivers to run iSMA Configurator.

• Connection by USB cable without powering the module
• Upgrade firmware, reset module, reload module and load default settings
• Monitor digital inputs/pulse counter values
• Configure universal inputs for temp, analog, contact closure
• Establish COV increments
• Configure communication parameters
• Save configuration file, load configuration file
• Supported five types of communication: Modbus RTU, Modbus TCP, BACnet MS/TP, BACnet IP, USB

Selection Guide

Model	UI	DI	AO	DO	TO	HOA
iSMA-B-8I		8
iSMA-B-8U	8
iSMA-B-4I4O-H		4		4*		Yes
iSMA-B-4U4O-H	4			4*		Yes
iSMA-B-4U4A-H	4		4			Yes
iSMA-B-4O-H				4**		Yes
iSMA-B-4TO-H					4	Yes
iSMA-B-MIX18	5	5	4	4*
iSMA-B-MIX38	8	12	6	12*

UI = Voltage/Current/Resistive/Dry Contact
DI = Dry Contact/Fast pulse counter (100 Hz)
AO = Analog Out 10V, 20 mA max/PWM
DO* = (NO) 3A @ 24 VAC/30 VDC
DO** = (NO/NC) 8A @ 24 VAC/30 VDC
HOA = Hand-Off-Auto-Switch

Input Modules

iSMA-B-8I provides 8 Digital Inputs (DI) for Dry contact inputs and Fast pulse counter up to 100 Hz that will be saved in EEPROM memory.

• One RS-485 half-duplex, Modbus or BACnet port.

iSMA-B-8U provides 8 Universal Inputs (UI). All Universal Inputs have 12-bit or 16-bit resolution which supports the following types of inputs:

• Temperature Input supports the following types of sensors:
  • In Fahrenheit degrees: 10K Type2, 10K Type3, 20K, 3K, PT 1000, Ni 1000 32F, Ni 1000 70F
  • In Celsius degrees: 10K3A1, 10K4A1, Carel 10K, 20K6A1, 2.2K3A1, 3K3A1, 30K6A1, SIE1, TAC1, SAT1, Pt1000, Ni1000 0C, Ni 1000 20C, Ni1000 LG 2.
• Voltage input 0-10 VDC: input resistance 100 kΩ accuracy ±0.1%, measurement resolution 3 mV @ 12-bit and 1 mV @ 16-bit
• Current input 0-20 mA external 200 Ω resistor required, provided with module
• Resistive input 0-1000 kΩ: measurement resolution for 20 k⊃ load 20 Ω @ 12-bit and 1 Ω @ 16-bit
• Dry contact input
• One RS-485 half-duplex, Modbus or BACnet port

Output Modules

iSMA-B-4O-H provides 4 relay (NC/NO) contacts rated max. 8 A @ 24 VAC/30 VDC with Hand Off Auto switch.

• One RS-485 half-duplex, Modbus or BACnet port.

iSMA-B-4TO-H provides 4 triac outputs rated 0.5 A @ 24 VAC with Hand Off Auto switch.

• One RS-485 half-duplex, Modbus or BACnet port

Mixed Modules

iSMA-B-4I4O-H provides:

• 4 digital Inputs (DI) for Dry contact inputs and Fast pulse counter up to 100 Hz that can be saved in EEPROM memory and
• 4 relay (NO) contacts rated max. 3 A @ 24 VAC/30 VDC with Hand Off Auto switch
• One RS-485 half-duplex, Modbus or BACnet port

iSMA-B-4U4O-H provides:

• 4 Universal Inputs (UI) with the functionality as described in the iSMA-B-8U and
• 4 relay (NO) contacts rated max. 3 A @ 24 V AC/30 VDC with Hand Off Auto switch
• One RS-485 half-duplex, Modbus or BACnet port

iSMA-B-4U4A-H provides:

• 4 Universal Inputs (UI) with the functionality as described in the iSMA-B-8U
• 4 Analog Outputs 12-bit AD Analog Output with max. 10 VDC and 20 mA load allows control of relays or SSR with PWM
• One RS-485 half-duplex, Modbus or BACnet port

iSMA-B-MIX18 provides:

• 5 Universal Inputs (UI) with the functionality as described in the iSMA-B-8U,
• 5 Digital Inputs (DI) for Dry contact inputs and Fast pulse counter up to 100 Hz save in EEPROM memory
• 4 relay (NO) contacts rated max. 3 A @ 24 VAC/30 VDC
• 4 Analog Outputs 12-bit AD Analog Output with max. 10 VDC and 20 mA load allows control of relays or SSR with PWM
• One RS-485 half-duplex, Modbus or BACnet port

iSMA-B-MIX38 provides:

• 8 Universal Inputs (UI) with the functionality as described in the iSMA-B-8U,
• 12 Digital Inputs (DI) for Dry contact inputs and Fast pulse counter up to 100 Hz save in EEPROM memory and
• 12 relay (NO) contacts rated max. 3 A @ 24 VAC/30 VDC and
• 6 Analog Outputs 12-bit AD Analog Output with max. 10 VDC and 20 mA load allows control of relays or SSR with PWM
• One RS-485 half-duplex, Modbus or BACnet port

Ordering Information

Serial 485 I/O Module with BACnet MSTP and Modbus RTU/ASCII Communication
Model	Description
iSMA-B-8I	8DI - Serial with BACnet and Modbus	$173
iSMA-B-8U	8UI - Serial with BACnet and Modbus	$242
iSMA-B-4I4O-H	4DI and 4DO with HOA - Serial with BACnet and Modbus	$218
iSMA-B-4U4O-H	4UI and 4DO with hand operation - Serial with BACnet and Modbus	$242
iSMA-B-4U4A-H	UI and 4AO with HOA - Serial with BACnet and Modbus	$254
iSMA-B-4O-H	4DO relay NC/NO 8 A @ 30V AC or DC with HOA - Serial with BACnet and Modbus	$218
iSMA-B-4TO-H	4TO triac outputs- .5 A @ 30 V AC with HOA - Serial with BACnet and Modbus	$218
iSMA-B-MIX18	5DI, 5UI, 4AO, 4DO - Serial with BACnet and Modbus	$276
iSMA-B-MIX38	12DI, 8UI, 6AO, 12DO - Serial with BACnet and Modbus	$426
Accessories
Model	Description
AI-XFMR	Wall-mount plug-in transformer 120 VAC (nom) input/24 VAC (nom) output (details...)	$39
AI-XFMR-E	Wall-mount plug-in transformer 230 VAC (nom) input/24 VAC (nom) output (details...)	$55
MDR-20-24	24VDC 20W DIN RAIL POWER SUPPLY (details...)	$40
MDR-40-24	24VDC 40W DIN RAIL POWER SUPPLY (details...)	$50
SDR-75-24	24VDC 75W DIN RAIL POWER SUPPLY (details...)	$90
Spare Terminal Strip Connectors
Model	Description
iSMA-B-8I-TB	Accessory - complete set of spare plugs, containing all types of plug connectors in necessary amounts for: iSMA-B-8I / ISMA-B-8I-IP module types.	$18
iSMA-B-8U-TB	Accessory - complete set of spare plugs, containing all types of plug connectors in necessary amounts for: ISMA-B-8U / iSMA-B-8U-IP module types.	$18
ISMA-B-4I4O-TB	Accessory - complete set of spare plugs, containing all types of plug connectors in necessary amounts for: iSMA-B-4I4O-H / iSMA-B-4I4O-H-IP module types.	$18
ISMA-B-4U4O-TB	Accessory - complete set of spare plugs, containing all types of plug connectors in necessary amounts for: iSMA-B-4U4O-H / iSMA-B-4U4O-H-IP module types.	$18
ISMA-B-4U4A-TB	Accessory - complete set of spare plugs, containing all types of plug connectors in necessary amounts for: iSMA-B-4U4A-H / iSMA-B-4U4A-H-IP module types.	$18
ISMA-B-4O-TB	Accessory - complete set of spare plugs, containing all types of plug connectors in necessary amounts for: iSMA-B-4O-H / iSMA-B-4O-H-IP module types.	$18
ISMA-B-4TO-TB	Accessory - complete set of spare plugs, containing all types of plug connectors in necessary amounts for: iSMA-B-4TO-H / iSMA-B-4TO-H-IP module types.	$18
iSMA-B-MIX18-TB	Accessory - complete set of spare plugs, containing all types of plug connectors in necessary amounts for: iSMA-B-MIX18 / iSMA-B-MIX18-IP module types.	$23
iSMA-B-MIX38-TB	Accessory - complete set of spare plugs, containing all types of plug connectors in necessary amounts for: iSMA-B-MIX38 / iSMA-B-MIX38-IP module types.	$32
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