RS-485 Modbus RTU Interface to 8 16-bit A/D, 8 Isolated Inputs, 8 Form C Relay Outputs Multifunction Module

Part: 570M Model: SeaI/O-570M

$385.00

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Description

The SeaI/O-570M, designed using the Linear Technology LTC1867 A/D chip, provides eight single-ended 16-bit analog inputs, eight optically isolated inputs, and eight Form C relay outputs.

The A/D inputs are independently software-selectable for +/- 5V or +/- 15V ranges and feature high input impedance, allowing easy connection to a variety of sensors. The A/D inputs support floating/non-referenced or ground-referenced selections. This makes the A/D inputs ideal for measuring floating signal sources such as outputs of transformers, thermistors, and battery-powered devices. Additionally, the A/D inputs can operate in bipolar or unipolar modes, and a dipswitch enables a bias voltage of +5 through a 10K resistor for thermistor input mode.

The SeaI/O-570M module features eight optically isolated inputs rated for 5-30VDC and provides 3500 VDC external isolation, while the Form C relays are configurable as normally-open or normally-closed and can switch DC loads up to 24W. Perfect for a variety of data acquisition/control and test & measurement applications, the SeaI/O-570M includes removable terminal blocks, which simplify field-wiring connections.

The SeaI/O-570M is powered from your 9-30VDC source, or select from a variety of Sealevel power supply options. The modules operate over a wide operating temperature range of -20°C to 70°C and extended temperature range is optional.

Communicate with the SeaI/O-570M using the Sealevel SeaMAX API software libraries or use any Modbus RTU compliant device. Sealevel’s SeaMAX software drivers and utilities make installation and operation easy using Microsoft Windows and Linux operating systems.

Expand your I/O network with SeaI/O N-series products. SeaI/O modules are available with Reed and Form C relays, optically isolated inputs, TTL interfaces, A/D and D/A functionality. Up to 246 additional expansion modules can be added using convenient pass-through connectors.

Get a jump start on your digital I/O development with The Digital I/O Handbook that will provide helpful information that you will use again and again. Check out Chapter 1 for an overview of logic principles.

Category: RS-485

Additional information

A/D Chip	Linear Technology LTC1867
Humidity Range	10 – 90% Relative Humidity, Non-Condensing
Storage Temperature	-50°C to 105°C (-58°F to 221°F)
RoHS Compliant	Yes
Power Requirement	9-30 VDC @ 2.3W
Power Connector	1.3mm Barrel, Terminal Block, RJ45 Pass-Through
# of Ports	8/8/8
Output Type	Form C Relay
Output Specification	24 VDC @ 1A
Operating Temperature	-20°C to 70°C (-4°F to 158°F)
Number of Inputs/Outputs	16 Inputs / 8 Outputs
Host Interface(s)	RS-485
Input Impedance	6.2 K Ohms (in series)
Input Range	5-30 VDC
Input Isolation	2500 VAC RMS, 3500 VDC
Field Wiring	16 – 30 AWG
A/D Inputs	8 Single-Ended
Extended Temperature	Call for Options
Dimensions	7.5 (L) x 5.1 (W) x 1.3 (H)
Digital I/O	Form C Relay Outputs, Isolated Inputs
Contact Voltage	30VDC max.
Contact Release Time	5ms max.
Contact Operate Time	5ms max.
Contact Current	2A max.
Contact Bounce Time	7ms max.
Family	SeaI/O
Analog I/O	A/D Inputs
A/D Resolution	16-bits
A/D Range	+/-5V, +/-15V
Switching Capacity	24W