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Acromag’s latest Etherstax Ethernet I/O module captures data from high-level analogue current and voltage signal inputs or from 7B/8B signal conditioner modules interfacing low-level sensor signals.

The ES2153 converts 16 DC current and 16 DC voltage single-ended analogue inputs from various transducers and instruments for transmission to an Ethernet-based control network.

A DB25 serial port provides an alternative voltage input connection from a rack of 7B or 8B signal conditioning modules to monitor a wider variety of sensors including temperature, frequency and load cells.

The module supports Modbus TCP/IP and UDP/IP protocol communication as well as peer-to-peer messaging.

Fast scanning with high-resolution 16-bit A/D captures data from all 32 channels in less than 10ms.

The units are available in several configurations.

The 16 analogue current and 16 voltage inputs support several signal types.

Current inputs accept +/-20mA, 0-20mA or 4-20mA ranges.

Voltage inputs handle +/-5V and +/-10V ranges including signals from 7B or 8B signal conditioning modules supporting almost 100 additional input types with channel-to-channel isolation.

Dual-format data registers support 16-bit integers and 32-bit floating point processing.

Scaling registers are configurable on a per-channel basis.

Each input channel has a configurable sample averaging function and an integrator/totaliser with non-volatile counter registers for additional signal processing tasks.

Automatic zero/span calibration, with on-demand self-test diagnostics to verify the calibration, ensures reliable measurements.

Acromag’s I2O technology enables re-transmission of captured input signals across any Ethernet media to remote Etherstax output modules with fast peer-to-peer updates at adjustable time intervals or a per cent change (100ms, 0.1 per cent resolution).

Typical applications include process control, automated manufacturing, remote data acquisition, test and measurement, embedded computing and supervisory monitoring systems.

Etherstax I/O units are designed for high-reliability operation, with numerous features to help prevent downtime, improve performance and withstand harsh industrial environments.

Dual network ports provide a redundant communication path for critical applications with support of 100Base-FX fibre-optic and/or 10/100Base-TX copper connections.

Dual DC power terminals permit redundant power sources.

Internal diode coupling delivers a ‘bump-less’ transfer to the back-up power source.

A failsafe relay provides alarm output on a power or link-loss failure.

A hardware watchdog timer can send outputs to a failsafe state or hold the last value if there is a communication failure.

To further minimise downtime, the I/O circuitry features over-temperature, over-voltage and over-current protection.

Continuous 250V AC (354V DC) isolation – with a peak 1,500V AC rating – safely separates I/O signals from the power, relay and Ethernet ports.

Other industrial-grade specs include extended -40 to 70C operating temperatures.

The stackable, high-density packaging enables installation of nearly 100 I/O in an 8in x 7in footprint.

A high-strength aluminum enclosure gives IP20 protection with 50g shock and 5g vibration resistance.

This rugged design is ideal for mounting on DIN rails, walls or directly on machinery.

Pluggable terminal blocks support easy installation and servicing.

A stackable open board version (no housing) simplifies mounting in NEMA enclosures with lower costs for OEMs and system integrators.

Etherstax can be used in many applications for both end users and OEMs.

The remote I/O abilities are suitable for monitoring, supervisory control and data acquisition tasks at water, power generation and oil/gas facilities.

On the plant floor, the rugged construction delivers dependable performance for a variety of distributed I/O functions.

In a control panel, the compact design permits mounting in tight spaces.

Low-power, high-efficiency, fanless system designs can be accommodated.

Etherstax are suitable for use in Class I, Division 2, Group ABCD, Zone 2 locations.

CE and UL approvals are pending.

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