Difference between revisions of "TTJ Temperature sensor"
From Wiki Knowledge Base | Teltonika GPS
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| − | One of the implemented features for fleet management devices is 1-Wire data protocol, which enables connection of temperature sensors. It is a perfect accessory for temperature monitoring.<br/><br/> | + | [[File:Ttj foto.png|thumb|300px|TTJ Temperature sensor]] |
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| + | One of the implemented features for fleet management devices is a 1-Wire data protocol, which enables the connection of temperature sensors. It is a perfect accessory for temperature monitoring.<br/><br/> | ||
'''TTJ IS A SOLUTION FOR FLEET MANAGEMENT TRACKER IN FOLLOWING CASES:'''<br/> | '''TTJ IS A SOLUTION FOR FLEET MANAGEMENT TRACKER IN FOLLOWING CASES:'''<br/> | ||
# Thermostatic controls – maintain temperature near a desired set point. | # Thermostatic controls – maintain temperature near a desired set point. | ||
# Thermally sensitive system – receive alerts when temperature enters or leaves pre-defined value. | # Thermally sensitive system – receive alerts when temperature enters or leaves pre-defined value. | ||
| − | # Consumer products – be assured that goods which you are delivering will maintain high quality. <br/><br/> | + | # Consumer products – be assured that the goods which you are delivering will maintain high quality. <br/><br/> |
'''Description'''<br/> | '''Description'''<br/> | ||
| − | The | + | The TTJ Temperature sensor provides 9-bit Celsius temperature measurements and has an alarm function with nonvolatile user-programmable upper and lower trigger points. The TTJ communicates over a 1-Wire bus that by definition requires only one data line (and ground) for communication with a central microprocessor. It has an operating temperature range of –55°C to +125°C and is accurate to ±0,5°C over the range of –10°C to +85°C. In addition, the TTJ can derive power directly from the data line (“parasite power”), eliminating the need for an external power supply. Each TTJ has a unique 64-bit serial code, which allows multiple TTJ sensors to function on the same 1-Wire bus. Thus, it is simple to use one microprocessor to control many TTJs distributed over a large area. Applications that can benefit from this feature include HVAC environmental controls, temperature monitoring systems inside buildings, equipment, or machinery, and process monitoring and control systems. <br/><br/> |
'''TTJ technical characteristics''' | '''TTJ technical characteristics''' | ||
| − | * Unique 1-Wire® Interface Requires Only One Port Pin for Communication | + | *Supported by <span class="mw-collapsible mw-collapsed"> [https://wiki.teltonika-gps.com/view/FMB110 FMB110], [https://wiki.teltonika-gps.com/view/FMB120 FMB120], [https://wiki.teltonika-gps.com/view/FMB122 FMB122], [https://wiki.teltonika-gps.com/view/FMB125 FMB125], [https://wiki.teltonika-gps.com/view/FMU125 FMU125], [https://wiki.teltonika-gps.com/view/FMM125 FMM125], [https://wiki.teltonika-gps.com/view/FMC125 FMC125], [https://wiki.teltonika-gps.com/view/FMB130 FMB130], [https://wiki.teltonika-gps.com/view/FMU130 FMU130], [https://wiki.teltonika-gps.com/view/FMC130 FMC130], [https://wiki.teltonika-gps.com/view/FMM130 FMM130], [https://wiki.teltonika-gps.com/view/FMB140 FMB140], [https://wiki.teltonika-gps.com/view/FMB202 FMB202], [https://wiki.teltonika-gps.com/view/FMB204 FMB204], [https://wiki.teltonika-gps.com/view/FMB640 FMB640], [https://wiki.teltonika-gps.com/view/FMC640 FMC640], [https://wiki.teltonika-gps.com/view/FMM640 FMM640] </span> |
| − | * Each Device has a Unique 64-Bit Serial Code Stored in an On-Board ROM | + | * Unique 1-Wire® Interface Requires Only One Port Pin for Communication. |
| − | * Multidrop Capability Simplifies Distributed Temperature Sensing Applications | + | * Each Device has a Unique 64-Bit Serial Code Stored in an On-Board ROM. |
| − | * Requires No External Components | + | * Multidrop Capability Simplifies Distributed Temperature Sensing Applications. |
| − | * Can Be Powered From Data Line. Power Supply Range is 3. | + | * Requires No External Components. |
| − | * Measures Temperatures from - | + | * Can Be Powered From Data Line. Power Supply Range is 3.0 V to 5.5 V. |
| − | * 9-Bit Thermometer Resolution | + | * Measures Temperatures from -55° C to +125° C (-67° F to +257° F) ±0.5° C Accuracy from -10° C to +85° C. |
| − | * Converts Temperature in | + | * 9-Bit Thermometer Resolution. |
| − | * User-Definable Nonvolatile (NV) | + | * Converts Temperature in 750 ms (max). |
| − | * Alarm Search Command Identifies and Addresses Devices Whose Temperature is Outside Programmed Limits (Temperature Alarm Condition) | + | * User-Definable Nonvolatile (NV) alarm settings. |
| − | * Applications Include Thermostatic Controls, Industrial Systems, Consumer Products, Thermometers, or Any Thermally Sensitive System | + | * Alarm Search Command Identifies and Addresses Devices Whose Temperature is Outside Programmed Limits (Temperature Alarm Condition). |
| + | * Applications Include Thermostatic Controls, Industrial Systems, Consumer Products, Thermometers, or Any Thermally Sensitive System. | ||
| + | * Recommendations for cabling: max. cable length 15 meters, category – CAT5. Length over 20 meters increases measuring precision error. <br/> | ||
| + | |||
| + | ''TTJ sensor pin-out and connection diagrams:''<br/> | ||
| + | [[File:TTJ connection scheme.PNG|600px]] [[File:Sch fmb120 ds1820.png|400px]] | ||
| + | |||
| + | '''Configuration''' <br/> | ||
| + | On the FMB unit, TTJ sensor parameters are configured as I/O element parameters: ''Dallas temperature'' and ''Dallas temperature ID''. | ||
| + | |||
| + | [[File:T sensor parameter configuration.png|none|700px|caption]] | ||
| + | |||
| + | The configuration procedure is as other I/O element (for example: [[FMB120_I/O_settings]]) | ||
| + | |||
| + | ==External links== | ||
| + | https://teltonika-gps.com/product/ttj | ||
| − | [[ | + | [[Category:Accessories]] |
Latest revision as of 12:40, 13 September 2021
Main Page > Accessories > TTJ Temperature sensor
One of the implemented features for fleet management devices is a 1-Wire data protocol, which enables the connection of temperature sensors. It is a perfect accessory for temperature monitoring.
TTJ IS A SOLUTION FOR FLEET MANAGEMENT TRACKER IN FOLLOWING CASES:
- Thermostatic controls – maintain temperature near a desired set point.
- Thermally sensitive system – receive alerts when temperature enters or leaves pre-defined value.
- Consumer products – be assured that the goods which you are delivering will maintain high quality.
Description
The TTJ Temperature sensor provides 9-bit Celsius temperature measurements and has an alarm function with nonvolatile user-programmable upper and lower trigger points. The TTJ communicates over a 1-Wire bus that by definition requires only one data line (and ground) for communication with a central microprocessor. It has an operating temperature range of –55°C to +125°C and is accurate to ±0,5°C over the range of –10°C to +85°C. In addition, the TTJ can derive power directly from the data line (“parasite power”), eliminating the need for an external power supply. Each TTJ has a unique 64-bit serial code, which allows multiple TTJ sensors to function on the same 1-Wire bus. Thus, it is simple to use one microprocessor to control many TTJs distributed over a large area. Applications that can benefit from this feature include HVAC environmental controls, temperature monitoring systems inside buildings, equipment, or machinery, and process monitoring and control systems.
TTJ technical characteristics
- Supported by FMB110, FMB120, FMB122, FMB125, FMU125, FMM125, FMC125, FMB130, FMU130, FMC130, FMM130, FMB140, FMB202, FMB204, FMB640, FMC640, FMM640
- Unique 1-Wire® Interface Requires Only One Port Pin for Communication.
- Each Device has a Unique 64-Bit Serial Code Stored in an On-Board ROM.
- Multidrop Capability Simplifies Distributed Temperature Sensing Applications.
- Requires No External Components.
- Can Be Powered From Data Line. Power Supply Range is 3.0 V to 5.5 V.
- Measures Temperatures from -55° C to +125° C (-67° F to +257° F) ±0.5° C Accuracy from -10° C to +85° C.
- 9-Bit Thermometer Resolution.
- Converts Temperature in 750 ms (max).
- User-Definable Nonvolatile (NV) alarm settings.
- Alarm Search Command Identifies and Addresses Devices Whose Temperature is Outside Programmed Limits (Temperature Alarm Condition).
- Applications Include Thermostatic Controls, Industrial Systems, Consumer Products, Thermometers, or Any Thermally Sensitive System.
- Recommendations for cabling: max. cable length 15 meters, category – CAT5. Length over 20 meters increases measuring precision error.
TTJ sensor pin-out and connection diagrams:
Configuration
On the FMB unit, TTJ sensor parameters are configured as I/O element parameters: Dallas temperature and Dallas temperature ID.
The configuration procedure is as other I/O element (for example: FMB120_I/O_settings)
