Datexel DAT 3016 User Manual

Thermocouple RS485 Converter 4 channel
Phone: [phone] E-mail : [e-mail] - Web Site www.datexel.com

4 channel Thermocouple to RS485

Converter

DDAAT T 33016

016

FEATURES

- Field-Bus remote data acquisition

- Modbus Slave device on RS-485

- Modbus RTU/ Modbus ASCII protocol

- 4 channels input

- Input configurable for Tc J, K, R, S, B, E, T, N and voltage up to ± 1V

- Watch-Dog Alarm

- Remotely Configurable

- 2000 Vac 3-ways Galvanic Isolation

- High Accuracy

- UL / CE mark

- DIN rail mounting in compliance with EN-50022

(1) Referred to input Span (di fference between max. and min.

Values)

(2) A pull-up resistor ( 10MW) is connected to +1V (brea k sensor)

GENERAL DESCRIPTION

The DAT 3016 device is able to acquire up to 4 analogue input signals. The data are transmitted with MODBUS RTU/MODBUS ASCII protocol on the RS-485
network (RS-232 interface is available).
It is possible to connect on input thermocouples or voltage signals up to ± 1V . The Cold Junction compensation for thermocouples is internally performed.
The device guarantees high accuracy and stable measure versus time and temperature.
To ensure the plant safety, two Watch-Dog timer alarms are provided.
The isolation between the parts of circuit removes eventual ground-loop effects, allowing the use of the device even in the heavy environmental conditions.
The DAT 3016 is in compliance with the Directive UL 61010-1 for US market and with the Directive CSA C22.2 No 61010-1 for the Canadian market.
The device is housed in a rough self-extinguishing plastic container which, thanks to its thin profile of 17.5mm only, allows a high density mounting on EN-50022
standard DIN rail.

COMMUNICATION PROTOCOLS

The DAT3016 is designed to work with the MODBUS RTU/MODBUS ASCII protocol: standard protocol in field-bus; allows to directly interface DAT3000 series
devices to the larger part of PLCs and SCADA applications available on the market.
For the protocol instructions, refer to the User Guide of the device.

USER INSTRUCTIONS

Before to install the device, please read the “Installation Instruction” section.
If the module configuration is unknown, with device powered off, connect the INIT terminal to the GND terminal (ground), at the next power on the device will be
auto-configured in the default settings (refer to the User Guide of the device).
Connect power supply, serial bus and analogue inputs as shown in the “Wiring” section.
The “PWR” LED state depends on the working condition of the device: see the "Light Signalling" section to verify the device working state.
To perform configuration and calibration operations, read the instructions in the User Guide of the device.
To simplify handling or replacing of the device, it is possible to remove the wired terminals even with the device powered.

TECHNICAL SPECIFICATIONS (Typical @ 25 °C and in the nominal conditions)

Input Accuracy (1)

mV/Tc the higher of

± 0.05% or 5 uV(1)

Linearity (1)

mV ± 0.1% f.s. (1)
Tc ± 0.2% f.s. (1)

Cold Junction Compensation ± 0.5 °C

Input Impedance

mV, Tc >/= 1 MW (2)

Thermal drift

Full Scale ± 0.005 % / °C (1)

CJC Thermal drift

Full Scale ± 0.02 %/ °C

Lead wire resistance influence

mV, Tc < 0.8 uV/Ohm (1)

Sample time 0.5 ÷ 1 sec.

Data Transmission

Baud Rate 38.4 Kbps
Max. distance 1.2 Km – 4000 ft

Warm-up time 3 min.

Voltage

25 mV -25 mV +25 mV
100 mV -100 mV +100 mV
250 mV -250 mV +250 mV
1000 mV -1000 mV +1000 mV

Thermocouple

J -210 °C +1200 °C
K -210 °C +1372 °C
R -50 °C +1767 °C
S -50 °C +1767 °C
B +400 °C +1825 °C
E -210 °C +1000 °C
T -210 °C +400 °C
N -210 °C +1300 °C

Input type Min Max

INPUT

MECHANICAL SPECIFICATIONS

Material Self-extinguish plastic
IP Code IP20
Wiring wires with diameter

0.8÷2.1 mm2 /AWG 14-18
Tightening Torque 0.5 N m
Mounting in compliance with DIN rail

standard EN-50022

Weight about 150 g.

ISOLATION

Input – RS485 2000 Vac 50 Hz, 1 min.
Supply – Input 2000 Vac 50 Hz, 1 min.
Supply – RS485 2000 Vac 50 Hz, 1 min.

POWER SUPPLY

Power supply voltage 10 .. 30 Vdc
Reverse polarity protection 60 Vdc max

Current consumption 30 mA max.

ENVIRONMENTAL CONDITIONS

Operative Temperature -10°C .. +60°C
UL Operative Temperature -10°C .. +40°C
Storage Temperature -40°C.. +85°C
Humidity (not condensed) 0 .. 90 %
Maximum Altitude 2000 m
Installation Indoor
Category of installation II
Pollution Degree 2

CERTIFICATIONS
EMC ( for industrial environments)

Immunity EN 61000-6-2
Emission EN 61000-6-4

UL

US Standard UL 61010-1
Canadian Standard CSA C22.2 No 61010-1
CCN NRAQ/NRAQ7
Typology Open Type device
Classification Industrial Control

Equipment

File Number E352854

Datexel s.r.l. reserves its right to modify the characteristics of its products totally or in part without warning at any time.

ED.03.15 REV.01

V+

D-

D+

V-

RS-485

SHIELD

INPUT #0

INIT

INPUT #1

INPUT #3

INPUT #2

A

BCD

I

J

1

3456728

+

-

10÷30 Vdc

J

I

-V

+V

GND

D -

D +

(-)

(+)

A

C

B

120

20

17.5

1
0
0

Voltage

2

1

INPUT 0

+

4

3

INPUT 1

+

6

5

INPUT 2

+

8

7

INPUT 3

+

Thermocouple

2

1

INPUT 0

+

4

3

INPUT 1

6

5

INPUT 2

8

7

INPUT 3

+ + +

= Ref.2 4 6 8

GND

TX

RX

RS-232

RX

TX

E

C

F

GND

INSTALLATION INSTRUCTIONS

The DAT 3016 is suitable for fitting to DIN rails in the vertical position.
For optimum operation and long life follow these instructions:

When the devices are installed side by side it may be necessary to
separate them by at least 5 mm in the following case:

- If panel temperature exceeds 45°C and at least one of the overload
conditions exist.

Make sure that sufficient air flow is provided for the device avoiding to place
raceways or other objects which could obstruct the ventilation slits. Moreover
it is suggested to avoid that devices are mounted above appliances
generating heat; their ideal place should be in the lower part of the panel.
Install the device in a place without vibrations.

Moreover it is suggested to avoid routing conductors near power signal
cables (motors, induction ovens, inverters etc...) and to use shielded cable
for connecting signals.

CABLING

LIGHT SIGNALLING

LED

COLOUR

STATE

DESCRIPTION

PWR

GREEN

ON

OFF

FAST BLINK

1 second BLINK

Device powered

Device not powered / W rong RS-485 cabling.

Communication in progres s (blink frequency
depends to baud-rat e)

Watch-Dog Al arm condition

MECHANICAL DIMENSIONS (mm)

WIRING

ANALOG INPUT

NOTE: input channels are not isolated between them.

RS-485 NETWORK RS-232 NETWORK

RS-485
network

POWER SUPPLY (*)

INIT

ON: short-circuit
to GND

D

C

GND

INIT

HOW TO ORDER

In the order phase, it is mandatory to specify the interface type (RS485 or RS232) .
DAT3016 can be supplied with the configuration specified by the customer.

ORDER CODE:

DAT 3016 / 485 / Tc K

Input typeInterface type
485 : RS-485
232 : RS-232

= Requested

= Optional

(*) Note: for UL installation the device must be powered using
a power supply unit classified NEC class 2 or SELV

POWER SUPPLY

SERIAL
BUS

ANALOGUE
INPUTS

ISOLATION STRUCTURE