Datexel Isolated Modbus RTU IO Module on RS-485 network - DAT3012

Watch-Dog Alarm, 3 SPST Relay Outputs, Highly Accurate – High Quality

The DAT3012 device, through the two universal input channels galvanically isolated from each other, converts a signal coming from RTD, Tc, mV sensors, V or mA applied as input in engineering units in digital format. It can also acquire up to 4 digital inputs and supply 3 SPST Relay outputs.

The digital inputs are also equipped with pulse counters up to 3 kHz and a frequency meter up to 200 Hz. The data is transmitted using the MODBUS protocol RTU on RS-485 network.

The device guarantees a high precision and a very stable measurement both in time and in temperature. In order to guarantee the system safety, the device is equipped with a Watch-Dog timer system for both analogue and digital outputs.

1500 VAC insulation on all streets eliminates all effects due to ground loops that may be present, allowing the use of the device even in the harshest environmental conditions.

The device is housed in a rough self-extinguishing plastic container which, thanks to its thin profile of 22.5mm only, allows a high density mounting on EN-50022 standard DIN rail.

The advantages and features for signal Converter DAT3138:

• Field-Bus remote data acquisition
• Modbus Slave device on RS-485
• Modbus RTU/Modbus ASCII Protocol
• 2 Isolated Universal Analogue Input
• 2 Analogue Outputs 0-20mA
• 4 Digital Inputs with pulse counters up to 3 kHz
• 3 SPST Relay Outputs
• Watch-Dog Alarm
• Remotely Configurable
• 1500 Vac galvanic isolation on all the ways
• High Accuracy
• DIN rail mounting in compliance with EN-50022

INPUT

• Voltage (mV, V)
• Thermocouple (J, K, S, R, B, E, T, N)
• RTD (*) 2,3,4 wires Pt100, Pt1000, Ni100, Ni1000

Potentiometer

• RES. 2,3 wires
• Current 20 mA

OUTPUT

• Current 0 mA 20 mA
• Data Transmission
• Baud Rate 115.2 Kbps
• Max. distance 1.2 Km – 4000 ft

DIGITAL INPUTS

• Number of Channels 4
• Pulse Counters (32 bit) 4 up to 3 kHz
• Input voltage OFF State: 0÷3 V
• (bipolar) ON State: 10÷30 V
• Input Impedance 4.7 KOhm

DIGITAL OUTPUTS

• N.3 Relays SPST
• Maximum switching power per contact (resistive load) 2 A @ 250 Vac, 2 A @ 30 Vdc
• Max. voltage 250Vac (50 / 60 Hz) , 30Vdc
• Dielectric Strength between contacts 1000 Vac, 50 Hz, 1 min.
• Dielectric Strength between coil and contacts 4000 Vac, 50 Hz, 1 min.

POWER SUPPLY

• Power supply voltage 18 .. 30 Vdc
• Reverse polarity protection 60 Vdc max
• Current consumption 100 mA max.

ISOLATION

(Power supply - RS485 – Universal input A – Universal input B – Digital Inputs – Analogue Outputs)

• 1500 Vac, 50 Hz, 1 min

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

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.

CERTIFICATIONS

• EMC (for industrial environments) Immunity EN 61000-6-2 Emission EN 61000-6-4