Datexel Signal Converter Modbus 8 Relay Output - DAT3138

CE mark, Watch-Dog Alarm, 8 Relay Output, Highly Accurate – High Quality

The device DAT3138 is able to drive up to 8 relay outputs SPDT. The data are transmitted with MODBUS RTU / MODBUS ASCII protocol over the RS-485 network.

To ensure the plant safety, a Watch-Dog timer alarm is 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 device is housed in a rough self-extinguishing plastic container which allows a high density mounting on EN-50022 standard DIN rail.

COMMUNICATION PROTOCOLS

The device 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.

The advantages and features for signal Converter DAT3138:

• Modbus Slave device on RS-485
• Modbus RTU/ Modbus ASCII protocol
• 8 relay outputs SPDT
• Communication parameters configurable by PC
• Watch-Dog Alarm
• Remotely Configurable
• 1500 Vac 3-ways Galvanic Isolation
• LEDs of signaling on front side for power supply and communication
• LEDs of signaling on front side for digital inputs and outputs state
• Connection by removable screw terminals
• High Accuracy
• CE mark
• DIN rail mounting in compliance with EN-50022

DIGITAL OUTPUT

• Channel 8
• Type N° 8 relays SPDT
• Maximum Switching Power
• Resistive load - per contact 2 A @ 250 Vca, 2 A @ 30 Vdc
• Max. voltage 250Vca (50 / 60 Hz), 30Vdc
• Dielectric strength between contacts, 1000 Vca, 50 Hz, 1 min.
• Dielectric strength between coil and contacts 4000 Vca, 50 Hz, 1 min.

COMMUNICATION

Data Transmission (RS-485 asynchronous serial)

• Baud Rate up to 115.2 Kbps
• Max. distance 1.2 Km – 4000 ft
• Protocol Modbus RTU/Modbus ASCII
• Serial Interface RS485 (2 wires)

POWER SUPPLY

• Power supply voltage 20 .. 30 Vdc
• Reverse polarity protection 60 Vdc max
• Current consumption (stand-by) 20 mA @ 24 Vdc
• Current consumption (relays operative) 100 mA max@24Vdc, 90 mA max@20Vdc

ISOLATION

• Between all the ways (RS485, power supply, digital outputs) 1500 Vac, 50 Hz, 1 min

ENVIRONMENTAL CONDITIONS

• Operative Temperature -10°C .. +60°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 210 g

CERTIFICATIONS

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