W-Modbus

Remote Diagnostics

Wireless, now remotely visible in your BMS

W-Modbus, our wireless alternative to Modbus RTU cable, can now integrate seamlessly into your building control workflow.

With firmware 4.3.0, we’re introducing Remote Diagnostics across all supported W-Modbus products, including our devices and our modules. This new capability exposes wireless network diagnostics through standard Modbus registers, making it possible to monitor network health, set alarms, build dashboards, and proactively manage W-Modbus installations using the tools you already work with every day.

For the first time, your wireless infrastructure becomes a measurable part of your building control workflow.

Move from reactive troubleshooting to proactive network management

In most building control systems, controllers and equipment are continuously monitored, while the communication network remains largely invisible.

When communication issues occur, troubleshooting often begins only after performance has been affected.

W-Modbus Remote Diagnostics changes that. By exposing wireless network data in your BMS, you can monitor network health, identify emerging issues, and create alarms before communication problems impact operations.

Move from reactive troubleshooting to proactive network management.

What is W-Modbus Remote Diagnostics?

W-Modbus Remote Diagnostics is a new firmware-based capability for W-Modbus installations. It exposes wireless network diagnostics through standard Modbus registers, allowing them to be imported into BMS, SCADA systems, HMIs, and other control platforms alongside other building data.

No separate software, licenses, subscriptions, or additional hardware are required.

Once imported, the diagnostic points can be used to monitor network health, create dashboards and graphics, trigger alarms based on network conditions, support remote troubleshooting, and document long-term network performance.

Video

Demo: See How W-Modbus Remote Diagnostics Works in Niagara

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Why it matters

Make wireless visible.

Monitor network health, node status, and performance directly in your BMS or other control system.

Detect issues right away.

Alarms and diagnostics enable proactive maintenance, faster response times, and fewer unexpected service calls.

Troubleshoot faster.

Quickly determine whether an issue originates in the wireless network or an end device, using the tools and workflows you already know.

Diagnostics data available in your BMS

W-Modbus Remote Diagnostics provides both gateway-level and node-level information through standard Modbus registers. While diagnostics are available for both gateways and nodes, all data is accessed through the gateway. Together, these diagnostics provide a detailed picture of network performance across the entire wireless W-Modbus installation. The data is updated every 2 minutes. Technical documentation, instructions and full list of diagnostics can be accessed in our full manual.

Gateway diagnostics:

  • – Gateway device name
  • – Gateway uptime
  • – Connected wireless node count
  • – Connected Modbus server/slave device count
  • – Firmware version and update status
  • – Restart history and restart reasons
  • – Communication and system error diagnostics
  • – Gateway replacement status

Node diagnostics:

  • – Packet Delivery Rate (PDR)
  • – Parent link signal strength (RSSI)
  • – Parent node information
  • – RS485 bus configuration
  • – Modbus address of each connected slave device
  • – Configured device name of each node
  • – Mesh link quality from node to gateway

Learn more about W-Modbus Remote Diagnostics

Explore the full manual for the technical deep dive.

Full manual

Compatible with your control system. Built for you.

W-Modbus Remote Diagnostics is demonstrated using Niagara, a widely used platform for monitoring and managing building and industrial systems. But the capability is not limited to Niagara.

Because diagnostics are exposed through standard Modbus registers, the data can be integrated into any compatible control system, SCADA platform, HMI, or software application that supports acting like a Modbus client/master device.

Whether you’re operating a single facility or managing a large distributed installation, diagnostics data becomes available through the same tools already used to monitor and manage operations.

The result is a seamless operator experience, where wireless network diagnostics are managed alongside the rest of the system using familiar tools and workflows.

Ready to enable Remote Diagnostics?

W-Modbus Remote Diagnostics is available now through a free firmware update for all our supported W-Modbus products.

Contact your distributor for firmware availability, upgrade guidance, and product information.

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Remote Diagnostics for all.

The new capability is available across our W-Modbus product line, including both devices and our module.