Teracom TSH330 Manuale utente

TSH330_R1.2 – May 2022 Page 1

www.teracomsystems.com

TSH330

IP54 Modbus RTU temperature and humidity sensor

Version 1.2 / May 2022

USER MANUAL

Page 2 TSH330_R1.2 – May 2022

1. Short descripon

TSH330 is an IP54 temperature and humidity sensor with an RS-485 interface. It supports the

Modbus RTU protocol.

The temperature and humidity sensor integrates basic elements plus signal processing and

provides a fully calibrated digital output. A unique capacive element is used for measuring relave

humidity while the temperature is measured by a bandgap element. Both elements are seamlessly

coupled to a 12-bit analog to digital converter. This results in superior signal quality.

The digital sensor is mounted in an IP65-rated enclosure. This provides protecon against

dust and water sprays. A cable gland with locknut and screwless terminal block allows easy cable

installaon.

2. Features

• RS-485 interface carrying up to 32 nods;

• LED indicator for status of communication;

• Changeable bitrate and other communication parameters;

• Firmware update via the interface.

3. Applicaons

• Server room and data centers humidity and temperature logging.

• Environmental quality monitoring and assessment.

• Humidity and temperature monitoring in building management systems.

• Humidity and temperature logging for mobile operator facilities, vineyards,

greenhouses, etc.

4. Specicaons

• Physical characteristics

Dimensions: 65.6 x 99 x 36 mm

Weight: 70 g

• Environmental limits

Operating temperature range: -20 to 60°C

Operating relative humidity range: 5 to 95% (non-condensing)

Recommended operating range is 20% to 80% RH (non-condensing) over –10 °C to 60 °C.

Prolonged operation beyond these ranges may result in a shift of sensor reading, with slow recovery time.

It is possible that in some weather condions the moisture in the air in the lter cap may condense. This may result in a

shi of sensor reading, with slow recovery me.

Storage temperature range: -20 to 60°C

Storage relative humidity range: 5 to 95% (non-condensing)

Ingress protection: IP54

• Power requirements

Input Voltage (including -15/+20% according to IEC 62368-1): 4.5 to 26 VDC

Input Current: 5 mA@5VDC

• Humidity measurements

Accuracy (min): ±3.0 %RH (in 20 to 80 %RH range)

Accuracy (max): ±5.0 %RH (in 5 to 95 %RH range)

Resolution: 0.1 %RH

• Temperature measurements

Accuracy (min): ±0.4 °C (in -10 to +60°C range)

Accuracy (max): ±0.6 °C (in -20 to +60°C range)

Resolution: 0.1 °C

• Warranty

Warranty period: 3 years

TSH330_R1.2 – May 2022 Page 3

5. Pinout

Pin Descripon Corresponding

UTP wires color

Line B- RS485 Blue

Line A+ RS485 Blue/White Tracer

GND Ground (negave) supply Brown

+4.5÷26V Posive power supply Brown/White Tracer

6. Installaon

The device is designed for wall mounng using screws passing through the sloed holes in

the enclosure.

A daisy-chained (linear) topology for mulple sensors should be used. UTP/FTP cables are

mandatory for interconnecon. The last sensor in the chain should have a terminator of 120ohm

installed on the bus. TSH330 has a built-in terminator. To enable it, please close the jumper.

7. Installaon ps

The locaon and the mounng posion of sensors have a direct eect on the accuracy

of measurements. The ps below will ensure good measuring results:

• Sensor shall be installed about 1.2-1.4 m above the floor;

• Avoid exposure to direct sunlight - solar radiation causes measurement inaccuracy;

• For outdoor usage, the sensors should be installed with protection from direct rain;

• Avoid mounting over ventilation shafts and windows/doors;

• Avoid attaching to walls in front of a chimney.

• It is recommended to mount the device in an accessible location for easier

maintenance.

Aenon:

The device should be installed with always lter and gland facing the oor.

8. Status indicator

The status of the device is shown by a single LED, located on the front panel:

• If the LED blinks for a period of 1 second, the sensor works properly;

• If the LED blinks for a period of 3 seconds, there isn‘t communication with the

controller;

• If LED doesn‘t blink, there isn‘t a power supply.

Page 4 TSH330_R1.2 – May 2022

9. Factory default sengs

Disconnect the sensor from the bus (switch o the power supply).

Press and hold the “cong” buon. Don’t release the buon, connecng the sensor to the bus

(switch on the power supply).

The “status” LED will be ON for 3 seconds and aer this will ash for 7 seconds. Aer the 10-th

second the LED will be ON.

Release the buon. The sensor will restart with factory default sengs.

10. Firmware update

The rmware of the sensor can be updated with a Teracom controller which supports

MODBUS RTU or MBRTU-Cong soware. For more details ask your dealer.

11. Modbus address table

PDU

Address

(Decimal)

Logical

address

(Decimal)

Oset

(Decimal) Data size Default Valid values

RS-485 address R/W 03/06 10 40011 40001 16-bit uns. integer 1 1-247

Baud rate * R/W 03/06 11 40012 40001 16-bit uns. integer 19200 2400, 4800, 9600, 19200,

38400, 57600

Parity, data, stop bits * R/W 03/06 12 40013 40001 16-bit uns. integer 1 1=E81, 2=O81, 3=N81

Data order R/W 03/06 13 40014 40001 16-bit uns. integer 1 1=MSWF (MSW, LSW)

2=LSWF (LSW, MSW)

Sub-family number R 3 14 40015 40001 16-bit uns. integer 0xCD

FW version R 3 15 40016 40001 16-bit uns. integer

Vendor URL R 3 18 40019 40001 64 bytes UTF-8 teracomsystems.com

Float test value (MSWF) R 3 82 40083 40001 32-bit oat -9.9(0xC11E6666)

Float test value (LSWF) R 3 84 40085 40001 32-bit oat -9.9(0xC11E6666)

Signed integer test value R 3 86 40087 40001 16-bit sig. integer -999(0xFC19)

Signed integer test value (MSWF) R 3 87 40088 40001 32-bit sig. integer -99999(0xFFFE7961)

Signed integer test value (LSWF) R 3 89 40090 40001 32-bit sig. integer -99999(0xFFFE7961)

Unsigned integer test value R 3 91 40092 40001 16-bit uns. integer 999(0x03E7)

Unsigned integer test value (MSWF) R 3 92 40093 40001 32-bit uns. integer 99999(0x0001869F)

Unsigned integer test value (LSWF) R 3 94 40095 40001 32-bit uns. integer 99999(0x0001869F)

Temperature °C R 3 100 40101 40001 32-bit oat

Humidity %RH R 3 102 40103 40001 32-bit oat

Dew point °C R 3 104 40105 40001 32-bit oat

Temperature °F R 3 200 40201 40001 32-bit oat

Humidity %RH R 3 202 40203 40001 32-bit oat

Dew point °F R 3 204 40205 40001 32-bit oat

Temperature °C x 100 R 3 400 40401 40001 16-bit sig. integer

Humidity %RH x 100 R 3 401 40402 40001 16-bit sig. integer

Dew point °C x 100 R 3 402 40403 40001 16-bit sig. integer

Temperature °F x 100 R 3 500 40501 40001 16-bit sig. integer

Humidity %RH x 100 R 3 501 40502 40001 16-bit sig. integer

Dew point °F x 100 R 3 502 40503 40001 16-bit sig. integer

MSWF - Most signicant word rst - (bits 31 … 16), (bits 15 … 0); LSWF - Least signicant word rst - (bits 15 … 0), (bits 31 … 16);

PDU address - Actual address bytes used in a Modbus Protocol Data unit

A “NaN” value is returned for unavailable oang-point values (e.g. in case of measurement error)

* The sengs will take eect aer restarng the sensor by a power-on reset.

12. Recycling

Recycle all applicable material.

Do not dispose of in the regular household refuse.

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