Difference between revisions of "WirelessHART"
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<td>IEEE 802.15.4ISM band 2.4GHz and 900MHz</td> |
<td>IEEE 802.15.4ISM band 2.4GHz and 900MHz</td> |
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<td>A mesh-networking standard for control and monitoring; building/home automation, embedded sensing. Distance range of up to 50 m.</td> |
<td>A mesh-networking standard for control and monitoring; building/home automation, embedded sensing. Distance range of up to 50 m.</td> |
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| + | <td>NXP<br> |
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| − | <td><a href="/new/silabs/siliconlabs-em35x/">Silicon Labs</a><br><a href="/new/nxpsemiconductors/nxpjn5148/">NXP</a><br> |
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| − | + | Panasonic</td> |
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<td>Low-cost, power efficient, easy solution for small networks. Use is widespread.</td> |
<td>Low-cost, power efficient, easy solution for small networks. Use is widespread.</td> |
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<td>Cannot serve a high number of nodes within the specified period.</td> |
<td>Cannot serve a high number of nodes within the specified period.</td> |
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<td>IEEE 802.15.4ISM band 2.4GHz.</td> |
<td>IEEE 802.15.4ISM band 2.4GHz.</td> |
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<td>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.</td> |
<td>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.</td> |
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| + | <td>Panasonic</td> |
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| − | <td><a href="/new/rfm/rfmxdm2510h/">RFM </a><br><a href="/new/panasonic/panasonicpan4561/">Panasonic</a></td> |
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<td>Designated as an International standard. Built on a 30-year old HART technology. An accepted standard. Created specifically for industrial controls.</td> |
<td>Designated as an International standard. Built on a 30-year old HART technology. An accepted standard. Created specifically for industrial controls.</td> |
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<td>Not compatible with some existing wired protocols (FieldBus®, Profibus®, etc.)Up to 250 nodes on a network.</td> |
<td>Not compatible with some existing wired protocols (FieldBus®, Profibus®, etc.)Up to 250 nodes on a network.</td> |
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<td>IEEE 802.15.4ISM band 2.4GHz.</td> |
<td>IEEE 802.15.4ISM band 2.4GHz.</td> |
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<td>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.</td> |
<td>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.</td> |
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| − | <td |
+ | <td>RFM<br>Microchip<br>Panasonic</td> |
<td>Can scale above 250 nodes per network. An accepted standard. Created specifically for industrial controls. 600m range.</td> |
<td>Can scale above 250 nodes per network. An accepted standard. Created specifically for industrial controls. 600m range.</td> |
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<td>Not yet in wide use. Communicates with HART®, Fieldbus®, Modbus®, Profibus®.</td> |
<td>Not yet in wide use. Communicates with HART®, Fieldbus®, Modbus®, Profibus®.</td> |
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<td>IEEE 802.11a/b/g/n/ac2.4 GHz and 5GHz. (inconsistent worldwide)</td> |
<td>IEEE 802.11a/b/g/n/ac2.4 GHz and 5GHz. (inconsistent worldwide)</td> |
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<td>Mature wireless standard developed for commercial/consumer use. Maximum distances from 100 – 200m.</td> |
<td>Mature wireless standard developed for commercial/consumer use. Maximum distances from 100 – 200m.</td> |
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| − | <td |
+ | <td>Murata<br>Microchip</td> |
<td>Higher data rate.Mature technology; no bridges required to interface to the web.</td> |
<td>Higher data rate.Mature technology; no bridges required to interface to the web.</td> |
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<td>Higher power consumption.</td> |
<td>Higher power consumption.</td> |
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<td>IEEE 802.15.1ISM band 2.4GHz.</td> |
<td>IEEE 802.15.1ISM band 2.4GHz.</td> |
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<td>Replaces serial connections like RS-232 and RS-485 and Ethernet over short distances (<100m)</td> |
<td>Replaces serial connections like RS-232 and RS-485 and Ethernet over short distances (<100m)</td> |
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| − | <td |
+ | <td>Murata<br>Panasonic</td> |
<td>Compatible with large number of consumer devices. Low cost with high data rate(1 Mbit/s).</td> |
<td>Compatible with large number of consumer devices. Low cost with high data rate(1 Mbit/s).</td> |
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<td>Consumes more power than 802.15.4 protocols, but less than 802.11</td> |
<td>Consumes more power than 802.15.4 protocols, but less than 802.11</td> |
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Revision as of 18:26, 11 April 2016
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/
| 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. | NXP Panasonic |
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. | Panasonic | 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. | RFM Microchip Panasonic |
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. | Murata Microchip |
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) | Murata Panasonic |
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 |