The Acromag NTW2620 are wireless remote RTD resistance input IO Modules. Firstly, these enable accurate acquisition of temperature and resistance-based instrumentation signals across distributed monitoring environments using industrial Wi-Fi Ethernet connectivity.
Each module provides:
- four RTD temperature input channels
- support for linear resistance measurement up to 4500 Ω
- two bidirectional discrete digital I/O channels
allowing temperature monitoring and equipment status control within a single compact remote I/O node.
Supported RTD sensor types include:
- Pt (Platinum)
- Ni (Nickel)
- Cu (Copper)
Supports 2-wire, 3-wire, and 4-wire RTD sensor configurations for compatibility with both legacy industrial installations and high-accuracy temperature measurement applications.
The module also supports slidewire and potentiometer-based resistance sensors, expanding its suitability beyond temperature monitoring into position and resistance measurement applications.
As part of the Acromag BusWorks NT modular remote I/O platform, the NTW2620 supports expansion using NTX modules. This enables you to scale monitoring systems to up to 64 mixed signal I/O channels under one IP address. Therefore, simplifying distributed infrastructure deployments.
Key Features
- Four RTD temperature input channels
- Supports Pt, Ni, and Cu RTD sensors
- Compatible with 2-wire, 3-wire, and 4-wire RTD configurations
- Supports 0 to 4500 Ω linear resistance input ranges
- Suitable for slidewire and potentiometer resistance monitoring
- Two bidirectional discrete digital I/O channels
- Discrete I/O supports TTL and 32 V logic-level equipment
- Dual-band Wi-Fi Ethernet connectivity (2.4 GHz / 5 GHz)
- Integrated RJ45 Ethernet port for configuration and wired deployment flexibility
- Supports Modbus TCP/IP and EtherNet/IP
- OPC UA, MQTT, and REST API IIoT integration support
- Expandable to 64 mixed I/O channels using NTX expansion modules
- Peer-to-peer communication supported using Acromag i2o messaging
- 1500 V isolation between I/O, network, and power circuits
- Compact 25 mm DIN-rail enclosure
- Wide operating temperature range −40 °C to +70 °C
- LED indicators simplify commissioning and troubleshooting
Supported Industrial Protocols
The NTW2620 wireless remote RTD resistance input IO Modules integrate directly with:
- PLC control systems
- SCADA platforms
- distributed infrastructure monitoring architectures
- IIoT monitoring environments
using:
- Modbus TCP/IP
- EtherNet/IP
- OPC UA
- MQTT
- REST API
This enables deployment without protocol converters.
Expandable BusWorks NT Remote I/O Architecture
The NTW2620 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 I/O modules to increase channel capacity.
to support up to 64 mixed signal channels under one IP address, simplifying distributed cabinet-level monitoring architectures across wired and wireless infrastructure environments. The wired compatible product for this version is the NT2620
Typical Applications
Industrial Temperature Monitoring
Monitor temperature across:
- tanks
- pipes
- motors
- heaters
- chillers
- industrial process equipment
using precision RTD sensor inputs.
Resistance Sensor Monitoring
Acquire signals from:
- slidewire sensors
- potentiometers
- resistance position sensors
- linear resistance instrumentation
for distributed monitoring across industrial automation environments.
Utilities and Infrastructure Monitoring
Deploy within:
- pump stations
- treatment plants
- telemetry enclosures
- distributed services infrastructure
to extend temperature monitoring capability beyond Ethernet cabling limits.
Transport Infrastructure Equipment Monitoring
Install inside:
- signalling equipment cabinets
- tunnel services infrastructure
- roadside monitoring enclosures
- platform services equipment cabinets
to support distributed temperature monitoring across infrastructure networks.
Equipment Status Monitoring and Control
Use the integrated discrete I/O channels to:
- monitor equipment status signals
- trigger alarms
- control auxiliary devices
- interface with TTL or 32 V logic equipment
within distributed automation systems.
How the NTW2620 Wireless Remote RTD Resistance Input IO Modules Work
Typical deployment architecture:
RTD or resistance sensor
→ NTW2620 wireless remote RTD resistance input IO Modules
→ Wi-Fi Ethernet network
→ PLC, SCADA, or cloud monitoring platform
This enables reliable distributed acquisition of temperature and resistance-based instrumentation signals without installing additional network cabling between control cabinets.
Wireless Connectivity and Communication Range
The NTW2620 includes:
- dual-band industrial Wi-Fi connectivity
- external RP-SMA antenna (2.15 dBi)
- typical wireless communication distance up to 100 metres line-of-sight
An integrated RJ45 Ethernet port provides additional flexibility for wired configuration and deployment where required.
Technical Specifications
| Feature | Specification |
|---|---|
| Analog Inputs | 4 RTD / resistance inputs |
| Supported RTD Types | Pt, Ni, Cu |
| Wiring Support | 2-wire, 3-wire, 4-wire |
| Resistance Range | 0 to 4500 Ω |
| Discrete I/O | 2 bidirectional channels |
| Logic Levels | TTL and 32 V compatible |
| Network Interface | Dual-band Wi-Fi Ethernet |
| 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.
The NTW2620 Wireless Remote RTD Resistance Inut I/O Modules forms part of the BusWorks NTW Series Wireless Remote I/O platform. Supporting modular distributed monitoring architectures.
Compare with
- NTW2610 Wireless Remote Thermocouple Millivolt Input I/O Module (thermocouple alternative for high-temperature sensing)
- NTW2210 Wireless Remote Analog Current Input I/O Module (for 4–20 mA temperature transmitters)
- NTW2510 Wireless Remote Multi-Function I/O Module (for mixed signal cabinet-level monitoring)
Wireless Remote RTD Resistance Input IO Modules Integration Support
Metromatics provides local engineering support across Australia and New Zealand for integrating wireless remote RTD resistance input IO Modules into transport infrastructure, utilities monitoring systems, and industrial automation environments.
Speak with our team to configure BusWorks NT wireless monitoring nodes, select NTX expansion modules, and deploy scalable distributed temperature monitoring architectures across PLC and SCADA systems.
