How do you design WirelessHART networks for optimal reliability and coverage?

WirelessHART network design: site survey (RF propagation, interference sources, physical obstacles), gateway placement (central location, proximity to control system), device planning (mesh density - each device needs 2+ neighbors), power management (update rate vs battery life), and redundancy (multiple paths in mesh). Implementation: configure gateway (security keys, network parameters), commission devices (verify join success, neighbor count), monitor network health (path stability, latency, packet loss), and tune parameters (retry count, network size). Considerations: time-critical vs monitoring applications, interference from WiFi in 2.4 GHz band, and physical access for battery replacement. Performance: typical 4-8 second update rate, thousands of devices per gateway. Use network planning tools and conduct RF site survey for large deployments.