The Acromag NTW2240 is a Wireless Remote Analog I/O Module with 16 Single Ended Voltage Inputs. This enables acquisition of up to sixteen voltage-based instrumentation signals across distributed infrastructure monitoring environments using industrial Wi-Fi Ethernet connectivity.
Each input channel supports:
- ±1 V
- ±5 V
- ±10 V
- 0–1 V
- 0–5 V
- 0–10 V measurement ranges
making the module suitable for monitoring building automation signals, environmental controllers, and industrial voltage-output transmitters.
As part of the Acromag BusWorks NT modular remote I/O platform, the NTW2240 supports expansion using NTX modules. This allows you to scale monitoring systems up to 64 mixed signal I/O channels under a single IP address. Therefore, simplifying integration across distributed instrumentation architectures.
Key Features
- Sixteen single-ended voltage input channels
- Supports ±1 V, ±5 V, ±10 V and 0–1 V, 0–5 V, 0–10 V input ranges
- Designed for monitoring 0–10 V automation and environmental controller signals
- Integrated dual-band Wi-Fi Ethernet connectivity (2.4 GHz / 5 GHz)
- Includes RJ45 Ethernet port for configuration and flexible wired deployment
- Supports Modbus TCP/IP and EtherNet/IP industrial protocols
- OPC UA, MQTT, and REST API support for IIoT integration
- Expandable to 64 mixed signal I/O channels using NTX expansion modules
- Peer-to-peer communication supported using Acromag i2o messaging technology
- 1500 V isolation between I/O, network, and power circuits
- Compact 25 mm DIN-rail enclosure
- Wide industrial operating temperature range −40 °C to +70 °C
- LED indicators simplify commissioning and troubleshooting
Supported Industrial Protocols
The NTW2240 Wireless Remote Analog 16 Single Ended Voltage Inputs module integrates directly into automation environments using:
- Modbus TCP/IP
- EtherNet/IP
- OPC UA
- MQTT
- REST API
These protocols enable connectivity with PLC controllers, SCADA platforms, and modern IIoT monitoring systems without protocol converters.
Expandable BusWorks NT Remote I/O Architecture
The NTW2240 operates as a wireless interface module within the Acromag BusWorks NT modular remote I/O system.
A BusWorks NT node consists of either:
- an NTW wireless interface module, or
- an NTE wired Ethernet interface module
combined with optional NTX expansion modules connected along the DIN-rail internal NT bus.
This architecture supports up to 64 mixed analog, digital, and temperature I/O channels under one IP address, simplifying addressing across distributed monitoring installations.
Equivalent wired Ethernet connectivity is available using BusWorks NTE interface modules where wireless networking is not preferred. The wired compatible product for this version is the NT2240.
Typical Applications
Building Automation and HVAC Monitoring
Monitor voltage-based control signals from:
- HVAC controllers
- environmental monitoring systems
- ventilation control equipment
- building automation instrumentation
The 0–10 V signal is widely used across automation and environmental controller platforms. Therefore, making the NTW2240 well suited for these installations.
Industrial Voltage Signal Monitoring
Acquire instrumentation signals from:
- pressure transmitters
- temperature transmitters
- level instrumentation
- control panel analog outputs
Supports distributed monitoring of voltage-output instrumentation loops.
Utilities and Infrastructure Monitoring
Deploy the NTW2240 within:
- pump stations
- treatment plants
- reservoir monitoring cabinets
- distributed telemetry enclosures
Wireless connectivity simplifies monitoring across large infrastructure sites.
Transport and Roadside Equipment Cabinets
Install within:
- signalling equipment shelters
- roadside monitoring cabinets
- tunnel services enclosures
- lighting control infrastructure
Extends monitoring capability beyond Ethernet cabling limits.
How the NTW2240 Wireless Remote Analog 16 Single Ended Voltage Inputs Works
Typical deployment architecture:
0–10 V instrumentation signals
→ NTW2240 Wireless Remote Analog 16 Single Ended Voltage Inputs
→ Wi-Fi Ethernet network
→ PLC, SCADA, or cloud monitoring platform
This enables reliable acquisition of multiple voltage-based instrumentation channels without installing additional network cabling between distributed control cabinets.
Wireless Connectivity and Communication Range
The NTW2240 has an external omni-directional antenna with about 2.15 dBi gain.
It supports wireless distances up to 100 metres line-of-sight.
Range can vary with the enclosure type, antenna placement, and site wireless setup.
An integrated RJ45 port provides additional flexibility for wired configuration and commissioning.
Technical Specifications
| Feature | Specification |
|---|---|
| Analog Inputs | 16 single-ended voltage inputs |
| Input Ranges | ±1 V, ±5 V, ±10 V and 0–1 V, 0–5 V, 0–10 V |
| Conversion Scheme | 16-bit bidirectional conversion using sigma-delta architecture |
| Input Accuracy | ±0.05 % typical |
| Network Interface | Wi-Fi Ethernet (802.11 a/b/g/n dual-band) |
| Industrial Protocols | Modbus TCP/IP, EtherNet/IP |
| IIoT Support | OPC UA, MQTT, REST API |
| Expansion Capability | Up to 64 channels using NTX modules |
| Isolation | 1500 V between I/O, network, and power |
| Mounting | DIN-rail |
| Operating Temperature | −40 °C to +70 °C |
Refer to the Spec sheet for more detailed information.
Wireless Remote Analog 16 Single Ended Voltage Inputs Integration Support
Metromatics provides local engineering support across Australia and New Zealand. We help integrate the Acromag NTW2240 Wireless Remote Analog module. It has 16 single-ended voltage inputs. It fits transport infrastructure, utilities monitoring systems, and industrial automation environments.
Speak with our team to configure scalable BusWorks NT wireless monitoring nodes, expand systems using NTX modules, and deploy reliable remote acquisition of 0–10 V instrumentation signals across PLC and SCADA architectures.
