Troubleshooting guide

6
Reference Manual
00809-0100-4308, Rev BA
Section 2: Transmitter Overview
December 2014
Transmitter Overview
2.2 Emerson's Smart Wireless
Emerson Smart Wireless is a self-organizing network solution. Wireless field instruments send
data to a Gateway, directly or routed through any of the wireless devices in the network, as
illustrated in Figure 2-4. Multiple communication paths are managed and analyzed in parallel to
assure optimal communication and sustained network reliability even if obstructions are
introduced.
Figure 2-4. Emerson Smart Wireless Network
Gateways interface with existing host systems using industry standard protocols, and native
integration into DeltaV
™
and Ovation is transparent and seamless.
Interference from other radios, WiFi, and EMC sources is avoided through Time Synchronized
Channel Hopping and Direct Sequence Spread Spectrum (DSSS). Also, a layered security
implementing industry standard Encryption, Authentication, Verification, Anti-Jamming, and
Key Management ensures that data transmissions are secure and received only by the Gateway.
2.3 Application characteristics
2.3.1 Tank shape
The guided wave radar transmitter is insensitive to the tank shape. Since the radar signal travels
along a probe, the shape of the tank bottom has no effect on the measurement performance.
The transmitter handles flat or dish-bottom tanks equally well.