NI InsightCM uses standard networking equipment to connect the distributed NI monitoring devices to NI InsightCM. Clients also use this connection as shown in Figure 1. Because NI InsightCM is a monitoring system and not part of a protection or control system, it is not recommended to connect NI InsightCM to the protection or control network.
Figure 1. NI InsightCM Network Architecture
For critical assets, NI recommends the use of at least 100 Mb/s wired Ethernet equipment. For balance of plant assets, NI recommends you use at least 10 Mb/s network equipment, which may either be wired or wireless.
In the event of a network outage or increased network load, the monitoring device can continue to acquire and buffer the data onboard using the configured settings. When network connectivity resumes, data is sent to NI InsightCM. The length of time that data can be stored onboard is dependent on the number of channels being monitored, sample rate, duration, and how often data is being collected. When the internal disk is full, the devices delete old data and keep the most recent data to send to the server after the network connection is reestablished. Disk space, CPU usage, and network response times may be monitored through NI InsightCM.