rdNetTest

A device can answer a ping and no longer deliver its service; a link that drops intermittently does not show on a one-off test. The fault is discovered by the operator, and the costliest one to diagnose stays invisible.

rdNetTest is a family of testers placed in a Niagara station. Each tester regularly queries a target — another station, a controller, a server, one of the site's basic services — in the protocol that target actually speaks, and publishes a health state: reachable or not, response time, counters, timestamps. From a supervisor station, dozens of heterogeneous devices are followed this way, with alarms wired onto failures, and nothing installed on the targets.

• A test that speaks the right protocol: "the service works", not just "the machine is on".
• Stability, not just presence: an intermittent fault becomes visible.
• Portfolio supervision from a single station.
• A health state usable like any station value: alarms, histories, views.
• Nothing to install on the monitored devices.

• Supervising a multi-site portfolio's reachability.
• Hunting an intermittent fault.
• Checking infrastructure before commissioning.
• Documenting a complaint with timestamped facts.

Niagara ≥ 4.13.x

0.19.2

on request

Integration tools

See the rangerdModbus