WirelessHART

https://en.wikipedia.org/wiki/WirelessHART

Key Capabilities:

• Reliability even in the presence of interference, thanks to technology like mesh networking, channel hopping, and time-synchronized messaging. WirelessHART coexistence with other wireless networks is assured.

• Security and privacy for network communications through encryption, verification, authentication, key management, and other open industry-standard best practices.

• Effective power management through Smart Data Publishing and other techniques that make batteries, solar and other low-power options practical for wireless devices

The underlying principle for the HART protocol implementation is the ” Time Synchronized Mesh Protocol (TSMP) “. Comprising the TSMP are five key components for time-synchronized communication:

frequency hopping automatic node joining network formation fully redundant mesh routing secure message transfer

The HART protocol for communications in wireless sensor networks is just one of the many available, including ZigBee, Ethernet and proprietary implementations. http://sourcetech411.com/2013/05/hart-protocol-for-communications-in-wireless-sensor-networks/

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Protocol	Standard & Operating Frequency	Description	Example Modules	Advantages	Disadvantages
Zigbee	IEEE 802.15.4ISM band 2.4GHz and 900MHz	A mesh-networking standard for control and monitoring; building/home automation, embedded sensing. Distance range of up to 50 m.	<a href="/new/silabs/siliconlabs-em35x/">Silicon Labs</a> <a href="/new/nxpsemiconductors/nxpjn5148/">NXP</a> <a href="/new/panasonic/panasonicpan4561/">Panasonic</a>	Low-cost, power efficient, easy solution for small networks. Use is widespread.	Cannot serve a high number of nodes within the specified period.
WirelessHART - Highway Addressable Remote Transducer Protocol	IEEE 802.15.4ISM band 2.4GHz.	A multi-vendor standard specifically designed for process monitoring and control; mesh networking with large numbers of sensors/nodes. Range is less than 100 feet.	<a href="/new/rfm/rfmxdm2510h/">RFM </a> <a href="/new/panasonic/panasonicpan4561/">Panasonic</a>	Designated as an International standard. Built on a 30-year old HART technology. An accepted standard. Created specifically for industrial controls.	Not compatible with some existing wired protocols (FieldBus®, Profibus®, etc.)Up to 250 nodes on a network.
ISA-100.11a	IEEE 802.15.4ISM band 2.4GHz.	A multi-vendor standard for reliable and secure wireless connectivity for non-critical control and monitoring. Low-data-rate, very low power consumption. ISM band 2.4GHz. Range of 600m.	<a href="/new/rfm/RFMlpr2430/">RFM</a> <a href="/new/microchip/MRF24J40MA/">Microchip</a> <a href="/new/panasonic/panasonicpan4561/">Panasonic</a>	Can scale above 250 nodes per network. An accepted standard. Created specifically for industrial controls. 600m range.	Not yet in wide use. Communicates with HART®, Fieldbus®, Modbus®, Profibus®.
Wi-Fi – Low power	IEEE 802.11a/b/g/n/ac2.4 GHz and 5GHz. (inconsistent worldwide)	Mature wireless standard developed for commercial/consumer use. Maximum distances from 100 – 200m.	<a href="/new/murata/murataTypeTN/">Murata</a> <a href="/new/microchip/microchipwifi/">Microchip</a>	Higher data rate.Mature technology; no bridges required to interface to the web.	Higher power consumption.
Bluetooth Low Energy	IEEE 802.15.1ISM band 2.4GHz.	Replaces serial connections like RS-232 and RS-485 and Ethernet over short distances (<100m)	<a href="/new/murata/murataTypeTN/">Murata</a> <a href="/new/panasonic/panasonicpan4561/">Panasonic</a>	Compatible with large number of consumer devices. Low cost with high data rate(1 Mbit/s).	Consumes more power than 802.15.4 protocols, but less than 802.11