Busworks NT series I/O modules
- Technology
- Industrial I/O Modules & Embedded Interfaces
- Partner
- Acromag
The Acromag BusWorks® NT Series delivers a modular, rugged, and Ethernet-based remote I/O platform for industrial automation, distributed control systems, building & process monitoring, and Industrial Internet of Things (IIoT) applications. These remote I/O modules let you add analogue, discrete, temperature, or multi-function I/O points over an Ethernet network using common industrial protocols — all with web-based configuration and high-performance communications.
The BusWorks NT Series brings cost-efficient, expandable remote I/O over Ethernet with flexibility, modern protocol support, and rugged reliability — all accessible via web configuration and scalable under a single IP address. Whether you’re capturing analogue sensor data, driving control signals, or combining mixed I/O types with IIoT readiness, the NT range offers a future-ready remote I/O platform for industrial networks.
Each NT module supports Modbus TCP/IP, EtherNet/IP, and PROFINET (field-selectable) and features an integrated expansion bus that lets you add multiple NTX I/O expansion units under a single IP address, reducing network complexity and hardware costs.
Range features
A high level overview of what this range offers
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Ethernet-Based Remote I/O Communication – Connect I/O over standard Ethernet with support for Modbus TCP/IP, EtherNet/IP, and PROFINET — field-selectable without extra hardware.
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Expandable I/O Architecture – NT modules include an integrated expansion bus that allows up to three NTX expansion I/O modules on each Ethernet port, providing up to dozens of mixed analogue and digital signals under one IP.
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Dual RJ45 Network Ports – Most modules provide dual 10/100 Mbps Ethernet ports for network redundancy or daisy-chain topology.
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Built-in Configuration & Diagnostics – A built-in web server lets you configure network settings, I/O parameters, and diagnostics from any browser without dedicated software.
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Rugged Industrial Design – NT Series modules are engineered for harsh environments with operating temperatures typically –40 °C to +70 °C, high noise immunity, and industrial approvals including UL Class 1 Div. 2 and ATEX/IECEx Zone 2 (pending) for hazardous locations.
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IIoT Integration Support – Modules can support OPC UA server, MQTT client, and RESTful APIs for modern IoT data exchange and cloud connectivity.
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Peer-to-Peer & Conditional Logic – The i2o® peer-to-peer messaging lets modules exchange data without a master controller, and built-in logic lets I/O respond to rules (e.g., IF/THEN/ELSE) for simple local processing.
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Mixed Signal Support – Choose modules tailored for analogue inputs, outputs, discrete digital I/O, thermocouples, RTDs, or multi-function I/O combinations to suit a wide range of industrial signals.
What’s in this range?
All the variants in the range and a comparison of what they offer
| Model | I/O Type | Key Capabilities |
|---|---|---|
NT2110 / NT2120 | Ethernet Digital I/O Modules | 16 bidirectional discrete inputs/outputs (NT2110 sinking or NT2120 sourcing), dual RJ45, up to 64 discrete I/O via expansion. |
NT2140 | Ethernet Discrete AC Input Module | 6 AC optocoupler discrete inputs + 2 DC discrete I/O, dual RJ45, supports expansion up to 24 AC inputs. |
NT2210 / NT2230 / NT2240 | Ethernet Analog I/O Modules | 8 differential current or voltage inputs (NT2210/NT2230) or 16 single-ended current/voltage inputs (NT2240), dual RJ45, and up to 32 analog I/O via expansion. |
NT2310 / NT2320 | Ethernet Analog Output Modules | 8 current (NT2310) or voltage (NT2320) outputs with 16-bit resolution, expandable up to 32 outputs under one IP. |
NT2510 / NT2530 | Ethernet Multi-Function I/O | 4 analog inputs, 2 analog outputs, 4 discrete I/O channels, dual RJ45, very flexible mixed-signal support. |
NT2610 | Thermocouple / mV Input Module | 8 thermocouple or millivolt inputs with 2 discrete I/O, ideal for temperature measurement with network interfacing. |
