1-Wire

1-Wire (abbreviated to 1W or OW), is a communication bus system designed for low-speed data transmission, signalling and power through a single wire.

To improve reliability, Unipi 1-Wire devices are designed for the best possible seriality and stability. This is achieved by using four conductors (GND, VCC, DATA-IN, DATA-OUT) - this arrangement is used for 8-port hubs, 1-Wire temperature sensors and other products from the Unipi 1W product range

Unipi 1-Wire sensors

  • the most inexpensive variant of 1W temperature sensor
  • digital waterproof sensor featuring the DS18B20 chip
  • metal probe dimensions: 6×30 mm
  • The temperature sensors are suitable for temperature measurements in the range of -10°C/+85°C. With reduced accuracy, the sensors can be used in a range from -55°C up to +125°C
  • Suitable for all Unipi 1W devices → 4-wire connection
  • Easy connection to Unipi controllers using an RJ45 connector with a suitable splitter
  • More info and tips regarding sensor connection are available in the 1-Wire article

Examples of use:

  • measuring indoor or outdoor temperature for the purpose of heating regulation
  • measuring temperature of liquids stored in tanks (several sensors can be placed on various levels to improve the accuracy)
  • measuring temperature of liquids in pipes

Applicable for:

  • All Unipi PLCs with a 1W bus, including the Unipi 1.1/Lite
    • With Unipi 1W hub and splitter
  • Unipi Extension xG18

A direct connection to Unipi PLC can be performed by cutting away the connector and connecting the sensor to the 1W terminal of Patron or Neuron controllers. Older Neuron controllers and the Unipi 1.1/Lite feature an RJ45 connector, allowing for a direct connection. For more info, please visit the 1-Wire bus and sensor connection.

TGL-40 rod sensor

  • Variant with the sensor placed in a metal probe (IP67)
  • Digital waterproof 1W sensor with a DS18B20 chip
  • Probe dimensions: ⌀5,7* x 40 mm (±0,1mm*)
  • Temperature sensors are suitable for measuring temperature in the range of -10 °C to 85 °C. With reduced accuracy, the sensors can be used in a range of -40°C to 105°C.
  • Cable temperature range: -30 °C to 105 °C
  • Suitable for all Unipi devices with a 1W bus → 4-wire connection
  • Easy connection to the Extension xG18 via RJ45 connector
  • Can be connected to Unipi PLCs using a splitter
  • For more information and tips regarding the sensor connection, please visit the 1-Wire article
  • Link to e-shop link

Examples of use:

  • Measuring indoor or outdoor temperature for the purpose of heating control
  • When placed into a thermowell, the sensor can be used to measure the temperature of media in pipelines or tanks (it is possible to place multiple sensors in different levels for more accurate readings)
  • The method of use must be selected in accordance with the temperature and chemical durability of the probe and the input cable

Applicable for:

  • All Unipi PLCs with a 1W bus, including the Unipi 1.1/Lite
    • With Unipi 1W hub and splitter
  • Unipi Extension xG18

A direct connection to Unipi PLC can be performed by cutting away the connector and connecting the sensor to the 1W terminal of Patron or Neuron controllers. Older Neuron controllers and the Unipi 1.1/Lite feature an RJ45 connector, allowing for a direct connection. For more info, please visit the 1-Wire bus and sensor connection.

DS 105B contact sensor

  • Designed for contact measurements of pipeline surface temperature (IP65 protection)
  • Digital water-proof 1W sensor featuring the DS18B20 chip
  • Probe size: (h x w x d): 40 x 12 x 12 mm
  • Holding metal band length: 40 cm
  • Minimal pipe diameter: 20 mm
  • Temperature sensors are suitable for measuring temperature in the range of -10 °C to 85 °C. With reduced accuracy, the sensors can be used in a range of -30°C to 100°C.
  • Cable temperature range: -30 °C to 105 °C
  • Suitable for all Unipi devices with a 1W bus → 4-wire connection
  • Easy connection to the Extension xG18 via RJ45 connector
  • Can be connected to Unipi PLCs using a splitter
  • For more information and tips regarding the sensor connection, please visit the 1-Wire article
  • Link to e-shop link

Examples of use:

  • Measuring pipeline surface temperature
  • The method of use must be selected in accordance with the temperature and chemical durability of the probe and the input cable

Applicable for:

  • All Unipi PLCs with a 1W bus, including the Unipi 1.1/Lite
    • With Unipi 1W hub and splitter
  • Unipi Extension xG18

A direct connection to Unipi PLC can be performed by cutting away the connector and connecting the sensor to the 1W terminal of Patron or Neuron controllers. Older Neuron controllers and the Unipi 1.1/Lite feature an RJ45 connector, allowing for a direct connection. For more info, please visit the 1-Wire bus and sensor connection.

SD 125C sump sensor

  • A variant for sumps (IP65 protection)
  • Digital 1W sensor featuring the DS18B20 chip
  • Probe dimensions: u ⌀6* x 120 mm (±0,2 mm*)
  • Plastic cover dimensions (h x w x d): 70 x 63 x 34 mm
  • Temperature sensors are suitable for temperature measurements in the range of -10°C to 85°C. With reduced accuracy, the sensors can be used in a range of -40°C to 125°C.
  • Head ambient working temperature: -30°C to 100°C
  • Connection: shrouded terminal box
  • Designed for 4-wire connection used on Unipi sensors and hubs
  • Can be wired to the RJ45 connector for connection to the Extension xG18 or any Unipi PLC via a suitable splitter
  • More info and tips regarding the sensor connection is available in the 1-Wire article
  • Link to e-shop: link

Examples of use:

  • Measuring temperature of media in pipelines
  • Suitable for measuring temperature in air conditioning ducts

Applicable for:

  • All Unipi PLCs with a 1W bus, including the Unipi 1.1/Lite
    • With Unipi 1W hub and splitter
  • Unipi Extension xG18

For connection to Unipi Patron or Unipi Neuron controllers, all you need to do is to interconnect the suitable terminals. For connection to Extension xG18, use a network cable (patch cord) with one of the connectors cut off. Alternatively, you can use a standard FTP/UTP cable with a crimped-on RJ45 connector. A connecting guide and more additional info is available in the article about 1-Wire bus and connection of our sensors.

SD 115C sensor for outdoors and halls

  • Outdoor variant with IP65 protection
  • Digital 1W senzor featuring the DS18B20 chip
  • Metal probe dimensions: ⌀6* x 25 mm (±0,1 mm*)
  • Plastic cover dimensions (h x w x d): 70 x 63 x 34 mm
  • Temperature sensors are suitable for temperature measuring in the range of -10°C to 85°C. With reduced accuracy, the sensors can be used in a range of -30°C to 100°C
  • Head ambient working temperature: -30°C to 100°C
  • Connection: shrouded terminal
  • Suitable for the 4-wire connection used on all Unipi sensors and hubs
  • Can be wired to the RJ45 connector and connected to the Extension xG18 or Unipi PLC via a suitable splitter
  • For more info and tips regarding the sensor connection, please visit the article about the 1-Wire bus
  • Link to e-shop: link

Examples of use:

  • Measuring temperature in outdoor spaces or industrial halls
  • Suitable for use in humid spaces and areas (cellars, greenhouses, etc.)

Applicable for:

  • All Unipi PLCs with a 1W bus, including the Unipi 1.1/Lite
    • With Unipi 1W hub and splitter
  • Unipi Extension xG18

For connection to Unipi Patron or Unipi Neuron controllers, all you need to do is to interconnect the suitable terminals. For connection to Extension xG18, use a network cable (patch cord) with one of the connectors cut off. Alternatively, you can use a standard FTP/UTP cable with a crimped-on RJ45 connector. A connecting guide and more additional info is available in the article about 1-Wire bus and connection of our sensors.

1W-T-IB on-wall sensor

  • variant of the 1W on-wall temperature sensor
  • an interior 1W sensor based on the DS18B20 chip
  • suitable for measurements in range of -10°C/+85°C
  • compatible with all Unipi 1W devices → 4-wire connection
  • easy connection to Unipi PLCs
  • possible connection through RJ45 connector via a suitable splitter/hub
  • additional info and tips for the sensor and its connection available in the 1-Wire article

Examples of use:

  • measuring indoor temperature for the purpose of control and regulation of heating, air conditioning, ventilation or heat recovery

Possible applications:

  • all Unipi PLCs with 1W bus including Unipi 1.1/Lite
  • Unipi Extension xG18 (with RJ45 connection)
  • Unipi 1-Wire hubs or splitters (with RJ45 connection)

The on-wall sensor can be connected directly to the 1W terminal on Patron or Neuron controllers. Alternatively, you can use a suitable hub or splitter (requires adding RJ45 connector to the sensor's cable); this option allows for connecting multiple sensors to a single PLC. RJ45 connector can be also used to connect the sensor to older Unipi Patron or Neuron controllers, or to Unipi 1.1/1.1 Lite. Further info is available in the 1-Wire article.

1W-T-IB2 on-wall sensor

  • redesign of the 1W on-wall temperature sensor
  • an interior 1W sensor based on the DS18B20 chip
  • suitable for measurements in range of -10°C/+85°C
  • compatible with all Unipi 1W devices → 4-wire connection
  • easy connection to Unipi PLCs
  • possible connection through RJ45 connector via a suitable splitter/hub
  • additional info and tips for the sensor and its connection available in the 1-Wire article

Examples of use:

  • measuring indoor temperature for the purpose of control and regulation of heating, air conditioning, ventilation or heat recovery

Possible applications:

  • all Unipi PLCs with 1W bus including Unipi 1.1/Lite
  • Unipi Extension xG18 (with RJ45 connection)
  • Unipi 1-Wire hubs or splitters (with RJ45 connection)

The on-wall sensor can be connected directly to the 1W terminal on Patron or Neuron controllers. Alternatively, you can use a suitable hub or splitter (requires adding RJ45 connector to the sensor's cable); this option allows for connecting multiple sensors to a single PLC. RJ45 connector can be also used to connect the sensor to older Patron or Unipi Neuron controllers, or to Unipi 1.1/1.1 Lite. Further info is available in the 1-Wire article.

The following sensors featuring rel. air humidity sensor are not compatible with Unipi Extension xG18 module.

1W-TH-IB on-wall sensor

  • indoor 1W temperature/humidity sensor
  • designed for on-wall installation
  • easy connection to Unipi controllers
  • compatible with all Unipi 1W devices → 4-wire connection
  • possible connection through RJ45 connector via a suitable splitter/hub
  • additional info and tips for the sensor and its connection available in the 1-Wire article

Examples of use:

  • measuring indoor temperature and rel. air humidity for the purpose of control and regulation of heating, air conditioning, ventilation or heat recovery

Possible applications:

  • all Unipi PLCs with 1W bus including Unipi 1.1/Lite
  • Unipi 1-Wire hubs or splitters (with RJ45 connection)

The on-wall sensor can be connected directly to the 1W terminal on Patron or Neuron controllers. Alternatively, you can use a suitable hub or splitter (requires adding RJ45 connector to the sensor's cable); this option allows for connecting multiple sensors to a single PLC. RJ45 connector can be also used to connect the sensor to older Unipi Patron or Neuron controllers, or to Unipi 1.1/1.1 Lite. Further info is available in the 1-Wire article.

1W-TH-IB2

  • redesign of the temperature/humidity indoor sensor
  • designed for on-wall installation
  • compatible with all Unipi 1W devices → 4-wire connection
  • easy connection to Unipi PLCs
  • possible connection through RJ45 connector via a suitable splitter/hub
  • additional info and tips for the sensor and its connection available in the 1-Wire article

Examples of use:

  • measuring indoor temperature and rel. air humidity for the purpose of control and regulation of heating, air conditioning, ventilation or heat recovery

Possible applications:

  • all Unipi PLCs with 1W bus including Unipi 1.1/Lite
  • Unipi 1-Wire hubs or splitters (with RJ45 connection)

The on-wall sensor can be connected directly to the 1W terminal on Patron or Neuron controllers. Alternatively, you can use a suitable hub or splitter (requires adding RJ45 connector to the sensor's cable); this option allows for connecting multiple sensors to a single PLC. RJ45 connector can be also used to connect the sensor to older Unipi Patron or Neuron controllers, or to Unipi 1.1/1.1 Lite. Further info is available in the 1-Wire article.