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en:automation:02-glossary:1wire-hidden [2023/03/08 09:00] – [1W-T/H-IB, 1W-T/H-IB2, SD 115C & SD 125C] avsetulaen:automation:02-glossary:1wire-hidden [2025/04/28 16:18] (current) – [Creating a multi-hub extensive network of 1-Wire sensors] updated wrap ofojt
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 </WRAP> </WRAP>
  
- +<WRAP group center round box 95%> 
-<WRAP center round info 90%>+{{ :files:img_warning-line_b.png?nolink |}} 
 +<WRAP half column 13%> 
 +{{ :en:hw:08_safety-instructions_pseudo-ISO-7010-info.png?nolink |(!)}} 
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 +<WRAP half column 83%> 
 +**Note:** \\
 The Unipi [[https://www.unipi.technology/cs/unipi-extension-xg18-p331|Unipi Extension xG18]] module allows an easy connection of multiple temperature sensors using a single data wire, with each sensor having its own channel (connector). Connecting multiple sensors to a single channel is not possible.  The Unipi [[https://www.unipi.technology/cs/unipi-extension-xg18-p331|Unipi Extension xG18]] module allows an easy connection of multiple temperature sensors using a single data wire, with each sensor having its own channel (connector). Connecting multiple sensors to a single channel is not possible. 
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 All described methods are depicted in the schematics below.  All described methods are depicted in the schematics below. 
  
-<WRAP center round info 90%>+<WRAP group center round box 95%> 
 +{{ :files:img_warning-line_b.png?nolink |}} 
 +<WRAP half column 13%> 
 +{{ :en:hw:08_safety-instructions_pseudo-ISO-7010-info.png?nolink |(!)}} 
 +</WRAP> 
 +<WRAP half column 83%> 
 +**Note:** \\
 The sensor features a 4-wire connection to improve the reliability of branched networks. However, it is possible to modify it for 3-wire connection by joining 1W (DATA) wires if needed. The sensor features a 4-wire connection to improve the reliability of branched networks. However, it is possible to modify it for 3-wire connection by joining 1W (DATA) wires if needed.
  
 You can also short-circuit VCC and GND wires to run the sensor in parasite mode with communication through two wires. You can also short-circuit VCC and GND wires to run the sensor in parasite mode with communication through two wires.
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 A compact  [[https://www.unipi.technology/1-wire-hub-s-8-porty-p31|8-port 1-Wire hub]] features eight RJ45 ports and allows you to connect multiple 1-Wire thermometers or other sensors with the RJ45 connector. To connect the hub to a controller you can either use a suitable patch cord (on controllers with the RJ45 port) or the [[https://www.unipi.technology/kabelova-1-wire-redukce-rj45-3-pin-svorkovnice-p325|cable reduction]] (on controllers with the newer 3-pin screw terminal).  A compact  [[https://www.unipi.technology/1-wire-hub-s-8-porty-p31|8-port 1-Wire hub]] features eight RJ45 ports and allows you to connect multiple 1-Wire thermometers or other sensors with the RJ45 connector. To connect the hub to a controller you can either use a suitable patch cord (on controllers with the RJ45 port) or the [[https://www.unipi.technology/kabelova-1-wire-redukce-rj45-3-pin-svorkovnice-p325|cable reduction]] (on controllers with the newer 3-pin screw terminal). 
  
-<WRAP center round important 90%>+<WRAP group center round box 95%> 
 +{{ :files:img_warning-line_b.png?nolink |}} 
 +<WRAP half column 13%> 
 +{{ :en:hw:09_safety-instructions_pseudo-ISO-7010-attention.png?nolink |(!)}} 
 +</WRAP> 
 +<WRAP half column 83%> 
 +**Attention:** \\
 It is necessary to follow the correct port order when connecting devices to the hub! Port 1 must be always used as an input port, the remaining ports must not be skipped; otherwise, any devices connected after the skipped port would be cut off from the 1-Wire bus.  It is necessary to follow the correct port order when connecting devices to the hub! Port 1 must be always used as an input port, the remaining ports must not be skipped; otherwise, any devices connected after the skipped port would be cut off from the 1-Wire bus. 
 </WRAP> </WRAP>
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 {{:en:hw:hub_simple_eng.png?600|}} {{:en:hw:hub_simple_eng.png?600|}}
  
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 It is possible to create a chain of multiple hubs if an extensive network of 1-Wire sensors or devices is needed. When interconnecting two hubs the topology stays the same - Port 1 serves as an input while the output is located on the last port in order.  It is possible to create a chain of multiple hubs if an extensive network of 1-Wire sensors or devices is needed. When interconnecting two hubs the topology stays the same - Port 1 serves as an input while the output is located on the last port in order. 
  
-<WRAP center round important 90%>+<WRAP group center round box 95%> 
 +{{ :files:img_warning-line_b.png?nolink |}} 
 +<WRAP half column 13%> 
 +{{ :en:hw:09_safety-instructions_pseudo-ISO-7010-attention.png?nolink |(!)}} 
 +</WRAP> 
 +<WRAP half column 83%> 
 +**Attention:** \\
 Any other 1-Wire device connected after the output port will be cut off from the bus!  Any other 1-Wire device connected after the output port will be cut off from the bus! 
- 
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 {{:en:hw:hubeng.png?600|}} {{:en:hw:hubeng.png?600|}}
  
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 <html><span class="kbBlueText">RJ45 connection</span></html> \\ <html><span class="kbBlueText">RJ45 connection</span></html> \\
 Connection to RJ45-connector network cable is useful for star-shaped network topologies created from 1-Wire hubs. You can also use it to connect the sensor to Unipi 1.1 extension board, or to the older variants of Unipi Neuron controllers.  Connection to RJ45-connector network cable is useful for star-shaped network topologies created from 1-Wire hubs. You can also use it to connect the sensor to Unipi 1.1 extension board, or to the older variants of Unipi Neuron controllers. 
-All sensors with DS18b20 chip (with parasite power) can be also connected to the [[https://www.unipi.technology/unipi-extension-xg18-p331|Unipi Extension xG18 module]]. Coloured connection scheme on the picture corresponds to the T568B connection. +All sensors with the DS18b20 chip and parasite power support can also be connected to the [[https://www.unipi.technology/unipi-extension-xg18-p331|Unipi Extension xG18 module]].. Coloured connection scheme on the picture corresponds to the T568B connection. 
 ;#; ;#;
  
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