Modbus RTU Converter - DAT1485

Product Overview

The DAT1485 is a highly versatile isolated converter designed to handle a wide range of measurement and linearization tasks. It is capable of measuring and linearizing temperature characteristics from RTD sensors, converting linear resistance variations, and processing mV signals as well as potentiometer inputs. Additionally, the DAT1485 supports standard thermocouple measurement and linearization, with integrated cold junction compensation. The converter translates these measurements into digital engineering units, transmitting data via the MODBUS RTU or MODBUS ASCII protocols over an RS-485 network. This device ensures exceptional accuracy and stability, both over time and across temperature variations. For RTD and resistance probes, the DAT1485 offers three-wire connection for cable compensation, as well as an option for sensor interruption alarms.

Please note that the product photo may not accurately represent the actual item. Always refer to the datasheet during installation to ensure proper setup and compliance with safety standards.

Features

• Versatile Input Configuration: Supports a wide range of inputs including RTD, TC, mV, resistance, and potentiometer.
• Robust Isolation: 1500 Vac 3-way galvanic isolation ensures reliability in harsh environments.
• Modbus Communication: Operates as a Modbus Slave device over RS-485, utilizing MODBUS RTU or MODBUS ASCII protocols.
• Remote and On-Field Configurability: The device is configurable remotely and can be reconfigured on-field, providing flexibility in various applications.
• High Accuracy: Ensures precise measurements and conversions with excellent stability.
• EMC Compliance: Fully compliant with EMC regulations, holding both CE and UKCA marks.
• DIN B In-Head Mounting: Designed for DIN B in-head mounting, with an optional kit for DIN rail mounting available.

Installation Instructions

The DAT1485 converter is designed for direct DIN B in-head mounting, ensuring seamless integration within your system. It must be securely fixed inside the probe using the appropriate mounting kit. For environments requiring DIN rail installation, an optional kit compliant with EN-50022 standards is available. It is crucial to install the device in a vibration-free location and to avoid running conductors near power signal cables to maintain optimal performance. To prevent passive current loops, ensure the shield of the RS485 communication cable is connected at only one point on the network.

Wiring and Connections

The DAT1485 provides straightforward wiring and connection options, including specific guidance for connecting the RS485 communication line, power supply, and analog inputs. The device can be set to INIT mode by adjusting the dip switch, allowing for easy configuration during installation. Detailed instructions on enabling and disabling INIT mode ensure proper setup and operation.

Disposal Information

This product should not be disposed of as regular household waste. It must be brought to an authorized recycling facility that handles electrical and electronic waste. Please contact your local waste treatment service or the supplier from whom the product was purchased for more information on proper disposal.

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