ADGT DTU2 Series Manuale utente

GPRS/NB-IoT Data Loggers

DTU2xx

User Guide

Revision 2.1, November 2021

DTU2xx Data Logger Series

User Guide. r. 2.1 | 2021-11-10

Tel.: +420 538 890 720 2 e-mail: [email protected]

DTU2xx Data Loggers

User Guide (revision 2.1, November 10th, 2021)

This user guide was developed for persons responsible for mounting, configuration and technical maintenance

of the DTU2xx data logger series (hereinafter referred to as DTU or Data Logger). The guide contains

information about the intended purpose, design, technical parameters and operating principles of the DTU.

ADGT systems reserves the right, without any prior notice, to make changes to the operating manual related

to the improvements in hardware and software, as well as to eliminating misprints and inaccuracies.

Safety Instructions

CE WARNING: In a residential environment this product may cause radio interference. In such

cases users may be required to take adequate measures.

WARNINGS!

Do not dispose electronic equipment as unsorted municipal waste. Please use a separate

collection facility or contact the supplier from which this instrument was purchased.

Do not disassemble the device unless you are qualified as service personnel.

AC Input voltage:100-240VAC, 230VAC, 50Hz

Connect the protective grounding conductor of the AC power cord to an earth ground, to avoid

electrical shock.

The equipment should not be serviced when powered up. Make sure to power down the

equipment before performing service activities.

Do not use or install this product near water to avoid fire or shock hazard.

Avoid exposing the equipment to rain or damp areas.

ADGT systems s.r.o

Planichkova, 442/3,

162 00, Prague 6, Prague, Czech Republic

The present document is the property of ADGT systems s.r.o.

Printing is authorized exclusively for private usage.

DTU2xx Data Logger Series

User Guide. r. 2.1 | 2021-11-10

Tel.: +420 538 890 720 3 e-mail: [email protected]

Content

Safety Instructions................................................................................................................................................2

1. Product Overview..............................................................................................................................................4

Product Description....................................................................................................................................................... 4

Technical Specifications................................................................................................................................................ 6

Appearance....................................................................................................................................................................... 8

DTU2xx Interfaces and Wiring Diagrams.............................................................................................................10

Universal GPIOs....................................................................................................................................................10

RS-232 and RS-485 Interfaces ........................................................................................................................13

DTU2xx Operating Modes.........................................................................................................................................15

LED Indication................................................................................................................................................................16

Collection and storage of information .................................................................................................................17

Algorithm of data logger communication..........................................................................................................17

SIM card operation ......................................................................................................................................................17

Operating in NB-IoT network...................................................................................................................................17

Backup battery power supply ..................................................................................................................................18

2. Getting Started................................................................................................................................................ 19

Important safety information...................................................................................................................................19

Installing DTU data logger ........................................................................................................................................19

3. Configuring data logger via PC ..................................................................................................................23

Connecting DTU to PC via USB................................................................................................................................23

DTU Configuring Tool Overview..............................................................................................................................24

Configuring System and Network Setting ..........................................................................................................26

Configuring Inputs.......................................................................................................................................................28

Configuring Serial Interfaces....................................................................................................................................30

Configuring Schedule .................................................................................................................................................32

Configuring SMS Notifications................................................................................................................................34

Configuring Power Consumption Mode When Switching Power to Battery .........................................35

Reboot and Reset .........................................................................................................................................................37

Firmware Update ..........................................................................................................................................................37

Application 1.........................................................................................................................................................39

DTU2xx Data Logger Series

User Guide. r. 2.1 | 2021-11-10

Tel.: +420 538 890 720 4 e-mail: [email protected]

1. Product Overview

Product Description

DTU2xx – a series of battery-powered data loggers

designed for remote metering and monitoring.

Device provides:

Automated data collection from meters with

pulse outputs, meters with serial RS-232 and

RS-485 ports and a wide range of sensors

(resistive, 4-20mA, 1-wire, etc);

Data storage in non-volatile memory;

Wireless data transmission to dispatching

server over GPRS or LTE NB-IoT network.

Data logger is made in an IP30 metal case and equipped with four configurable GPIOs, dual SIM

slots, serial RS-232 and RS-485 ports, and USB port for device configuring.

Devices are powered either from a 230V AC or from a 7-30V DC network (depending on model),

and also have a built-in replaceable 3500 mAh battery to provide backup autonomous operation of

the data logger in the event of external power failure. Battery service life ranges from 4 to 10 years

depending on the model (GPRS or NB-IoT) and its use.

The model range of DTU2xx is represented by the following base models:

Model

Network Type

Transmission Protocol

Power Supply

DTU217

GPRS

TCP

7-30 VDC

DTU217-C*

GPRS

TCP

100-240 VAC

DTU227

LTE NB-IoT

TCP

7-30 VDC

DTU227-U*

LTE NB-IoT

UDP

7-30 VDC

DTU227-C*

LTE NB-IoT

TCP

100-240 VAC

DTU227-UC*

LTE NB-IoT

UDP

100-240 VAC

* Base model options:

-U –UDP protocol. A base software option for all DTU2xx NB-IoT models, which means that the device operates

over the UDP protocol. Otherwise, if there is no ‘-U’ marking, that means that the device operates over TCP protocol.

-C –a built-in 100-240 VAC power supply unit. A base hardware option for all DTU2xx data logger models. Other-

wise, if there is no ‘-C’ marking for these models, that means that the device has 7-30 VDC power supply.

Fig. 1. DTU2xx data logger.

DTU217, DTU227, DTU227-U

7-30 VDC power supply

DTU217-C, DTU227-U, DTU227-UC

100-240 VAC power supply

Fig. 2. DTU2xx base models.

DTU2xx Data Logger Series

User Guide. r. 2.1 | 2021-11-10

Tel.: +420 538 890 720 5 e-mail: [email protected]

DTU2xx base models can be supplied with the set of additional options, which include the following groups:

Hardware Options - minor hardware changes to the device:

-G – RS-485 galvanic isolation

Assembly Options – include replacement or absence of the battery, case and/or type of mounting:

.Z – no battery

.M – no case (for DTU with 7-30 VDC power supply only)

.R – metal DIN rail mounting

.T – wall mounting

The base model in combination with the additional

options constitute a modification of the device and

indicate the difference between a specific modification

and the base model.

Options are added to the name of the base model in

the following sequence:

Base

Model

–

hyphen

Hardware

options

dot

Assembly

options (battery,

case, mounting)

Example of a modification name – DTU227-UCG.ZR

Within each group of options, the letters go

alphabetically. If the letters of the option group are not

present in the modification name, then the letter of the

next option group takes its place. If no option is

specified, then we have the base model (see the table

above).

DTU2xx Features

Data transmission according to the schedule, at pressing the button and on the event at

the object.

Date and time regular automatic synchronization.

Dual SIM for communication channel reservation.

Battery discharge monitoring. If the battery is low, a notification will be sent to the server.

Several outputs with a voltage of 3.6V, 5V, 7.5V and 12V for powering external sensors.

Quick and easy device configuration: via PC as well as remotely using web interface.

Application Areas

AMR/AMI Smart Metering Systems (heat, electricity, water, gas)

Automated Control Systems (temperature, leakage, pressure, 1-Wire, current loop)

Power and Energy Industry

Fig. 3. DTU2xx model code designation.

DTU2xx Data Logger Series

User Guide. r. 2.1 | 2021-11-10

Tel.: +420 538 890 720 6 e-mail: [email protected]

Technical Specifications

DTU217

DTU217-C

DTU227

DTU227-U

DTU227-C

DTU227-UC

POWER SUPPLY

Main power supply

source

7-30VDC

100-240VAC/

50Hz

7-30VDC

100-240VAC/

50Hz

100-240VAC/

50Hz

Max. power consumption

3W1

1W1

Connector

2-pin terminal block, pitch – 5.08 mm

Backup power supply

source

Li-SOCL2 A-type battery, 3.6V 3200 mAh

Current consumption in

a sleep mode (when

10 µA (at 2 Hz polling rate), 40 µA (at 20 Hz polling rate),

150 µA (at 100 Hz polling rate)2

Current consumption in

data transfer mode

(when powered by

battery)

150 mA2

36 mA2

Battery life

Not less than four years3

Up to ten years3

CELLULAR NETWORK PARAMETERS

Module frequency range

GSM 850/900/1800/1900

LTE B1/B3/B5/B8/B20/B28 (multiband)

Output power

33dBm (850/900 MHz)

30dBm (1800/1900 MHz)

23dBm±2dB

Data transmission

technology

GPRS class: configured

8/10/auto (up to 12)

NB-IoT Cat NB2

Data transmission rate

up to 85.6 kbps (DL/UL)

125 kbps(DL ) / 150 kbps(UL)

Protocol Stacks

IPv4 TCP

IPv4 UDP

IPv4 TCP

IPv4 UDP

GPIO PARAMETERS

Universal (pulse) inputs

x4 (IO1-IO4)

Connector type

Terminal block, pitch - 3.81mm

Unit of measured value

pulse, ohms, mA, °C, ppm

Pulse counting range

0 - 232

Sensor type

pulse counter, high-frequency pulse counter, signal input, leakage sensor, temperature

sensor, NAMUR, 1-Wire, 4-20 mA current loop, CO2 sensor,

load control, engine hours counter, opening sensor

Polling frequency4

2Hz (default): min. pulse duration – 500ms, max. pulse frequency at the input – 1Hz;

20Hz: min. pulse duration – 50ms, max. pulse frequency at the input – 10Hz;

100Hz: min. pulse duration – 10ms, max. pulse frequency at the input – 50Hz

Relative acceptable pulse

counting error limit

±0,01%

Input condition

Closed, Open, Short circuit, Break

Without taking into account the load at the 12V and 7.5V power outputs.

If all inputs are configured as counting and the 12V and 7.5V power outputs are turned off.

In the operating mode envisaging 3 communication sessions per month.

ATTENTION! Increasing the loop polling frequency results in a shorter accumulator battery life.

DTU2xx Data Logger Series

User Guide. r. 2.1 | 2021-11-10

Tel.: +420 538 890 720 7 e-mail: [email protected]

DTU217

DTU217-C

DTU227

DTU227-U

DTU227-C

DTU227-UC

Input resistance

measurement range

0 – 100 kOhm

The line is working properly: open state -3-100 kOhm, closed state - 1-3 kOhm

The line is faulty: line is broken - more than 10kOhm, short circuit - 0-1kOhm

OTHER PORTS & CONNECTORS

Serial Ports

1 x RS-232: non-isolated, Rx, Tx, G signals. Default speed -19200 bps (8N1)

1 x RS-485: non-isolated, A, B signals. Default speed - 19200 bps (8N1).

Load capacity – up to 32 unit load (UL) devices (up to 256 1/8 load devices).

1/2UL = 24kOm. Maximum communication range - up to 1000 m

Power outputs

2 x 3.6V (ENABLED by default)

1 x 5V (DISABLED by default). Enabled when the 1-Wire input is activated ("DS18B20”)

1 x 7.5V (DISABLED by default). Enabled when the "Current loop" input is activated.

1 x 12V (DISABLED by default). Enabled when the "Current loop" input is activated.

SIM

2 x mini-SIM (2FF)

Antenna

1 x SMA-F connector

DEFAULT SETTINGS

Data slice saving

once per hour

Readings transfer to

server

once/day, from 08.00 to 09.00

IOT24.eu server

IP address/server port5

iot24.eu:10002 (GSM)

139.162.147.141:10003 (NB-IoT)

Server connection

on schedule, pressing configuration button (SB),

event at facility (short circuit, break), reboot

Time synchronization

Each connection to server

GENERAL CHARACTERISTICS

Overall dimensions

97 x 88 x 36 mm

Weight

no more than 220 g

Enclosure

aluminum, protection class - IP30

Archive depth

10 years (hourly logging)

Time accuracy

5 sec/day

Average service life

10 years

OPERATING CONDITIONS

Operating temperature

-10...+50°C 6

Relative air humidity

up to 80% at 25°C

Atmospheric pressure

84-106. 7 kPa

For devices with a GPRS modem, use a domain name to connect to the server.

For devices with an NB-IoT modem, use only the IP address.

When operating from battery at temperatures below 0°C, the battery life could be shorter.

DTU2xx Data Logger Series

User Guide. r. 2.1 | 2021-11-10

Tel.: +420 538 890 720 8 e-mail: [email protected]

Appearance

DTU2xx is a single-board microcontroller device in a metal case with the possibility of mounting on

a DIN rail or on a wall. A description of the buttons and connectors is given below.

Table. 1. DTU2xx buttons and connectors.

Connector

Description

Front side

USB

mini-USB B connector for configuring data logger via PC

BAT

Power battery switch (default - OFF position)

Button for connecting to the server/configuring data logger

4-1

SIM 1

SIM card 1 holder

4-2

Button to remove SIM card 1

5-1

SIM 2

SIM card 2 holder

5-2

Button to remove SIM card 2

ANT

SMA-F connector for connecting GSM (NB-IoT) antenna

LED indicators (ST1, ST2, ST3)

Rear side

XP17

connector

RS-485

A+ signal, RS-485 line

B- signal, RS-485 line

Built-in terminal resistor output (in order to commute terminal resistor,

T-output should be connected to the B- output of RS-485 port)

XP27

connector

RS-232

Ground

RS-232 interface TX data output

RS-232 interface RX data input

Mating part is a 3-pin terminal block with a screw clip (pitch - 3.81 mm).

Fig. 4 DTU2xx connectors and buttons.

DTU2xx Data Logger Series

User Guide. r. 2.1 | 2021-11-10

Tel.: +420 538 890 720 9 e-mail: [email protected]

Connector

Description

XP38

connector

GPIO

Ground

IO1

Universal counting/signal Input/Output 1

IO2

Universal counting/signal Input/Output 2

IO3

Universal counting/signal Input/Output 3

IO4

Universal counting/signal Input/Output 4

XP48

connector

PW-OUT

Ground

3.6V

3.6 V power output

3.6V

3.6 V power output

XP58

connector

5 V power output

7.5V

7.5 V power output

12V

12 V power output

13-1

XP69

connector

7-30 VDC

DTU217,

DTU227

Ground

7-30 VDC power supply input

13-2

XP69

connector

~230 VAC

DTU217-C,

DTU227-C

Neutral input of power supply voltage 100-240 VAC

Line input of power supply voltage 100-240 VAC

Data logger grounding screw

Mating part is a 3-pin terminal block with a screw clip (pitch - 3.81 mm).

Mating part is a 2-pin terminal block with a screw clip (pitch - 5.08 mm).

DTU2xx Data Logger Series

User Guide. r. 2.1 | 2021-11-10

Tel.: +420 538 890 720 10 e-mail: [email protected]

DTU2xx Interfaces and Wiring Diagrams

Universal GPIOs

The data logger has four independent GPIO inputs-outputs (IO1-IO4), that support the connection of a

wide range of meters and sensors. The inputs can be programmatically configured via the web interface

of https://iot24.eu Cloud server or using the DTU Configuration Tool software.

1. Input types for connecting meters

Depending on the meter to be connected, when setting up the data logger, it is possible to select the

following input types:

Counting - the type of input used when connecting pulse meters with a relay output to DTU,

as well as meters with a NAMUR standard output to control the loop integrity. The inputs are

configured to connect meters with a pulse repetition rate at the outputs of up to 100Hz.

High-frequency meter (or HF pulse meter) - the type of input used when connecting high-

frequency impulse meters to the data logger.

Connection. An example of a possible connection of meters to the data logger is given in figure below.

One wire of the meter is connected to one of the inputs IO1 – IO4. The other wire is connected to the

3.6V - 3.6V low current output. The polarity of the wires is not taken into account when connecting.

Up to four meters can be connected to one data logger on one rail.

After connecting the meters, each input must be configured via the https://iot24.eu web interface or

in the DTU Configuration Tool software. When configuring, you must select the type of input (Pulse

meter or HF pulse meter) and set the threshold resistance values at the input.

Depending on the type of meter, the data logger will record 2 or 4 states at the inputs:

closed and open - if the meters are not equipped with a NAMUR circuit.

closed, open, short circuit (SC), open circuit - if the meters have a NAMUR output.

ATTENTION!

When you select the type of input HF impulse meter, you do not need to set the threshold resistance

value, it will be adjusted automatically.

Fig. 5. Connecting meters to DTU2xx.

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