Acromag - Acromag Process Products Newsletter

New Ethernet analog output modules control up to six drives, valves, or displays based on network commands

The latest I/O modules for Acromag's BusWorks® 900EN Series convert Ethernet Modbus/TCP instructions from network controllers to DC voltage or current outputs for driving analog control devices.

Acromag's new BusWorks® 972EN and 973EN Analog Output Modules deliver data from an Ethernet Modbus/TCP 10/100 network as voltage or current signals to as many as six measurement or control devices. Typical applications involve controlling valves, drives, motors, and variable level devices or providing analog signals for displays, recorders, and other non-networked process instruments and control systems. These independent I/O devices do not require expensive companion products, such as bus couplers and I/O backplanes, to deliver a more compact and cost-effective solution with very low startup costs. Setup is also faster and easier with embedded web pages allowing configuration using any standard web browser. No other software is required. Each inch-wide module contains a 12-bit D/A converter, a microcontroller for intelligent signal processing, and an Ethernet interface to communicate with the network. Power requirements are also very flexible. The output modules operate off standard 15-36V DC supplies instead of proprietary 5V power sources. Priced at only $500 for a four-output unit or $650 for six outputs, they are very economical for applications that only need to control a few devices per site.

For more information download Acromag's Ethernet I/O brochure (pdf, 918 KB).

Visit www.acromag.com for more information or call 248-624-1541. To request product literature or our 2003 catalog, click here.

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Congratulations to Mr. William Pascoe of South Florida Water Management He was the winner of the April 1, 2004 digital camera drawing. To enter for our next drawing, please go to www.acromag.com/win.cfm.

Ask the I/O Experts
Question: Does Acromag have a solution for a non-linear response curve or the monitoring of only a portion of an incoming analog input signal?

First, the Intellipack 801T, 811T and 851T Transmitters offer a linearizer function in the transmitter configuration page of the Acromag Intellipack software package. This will linearize different response curves or select a range for a corresponding output signal. Selecting the linearizer option allows the user to enter up to 25 breakpoints to facilitate up to 24 segments of linearization from input to output. Input and output break points are entered in percent and correspond to 0-100% at the input (scaled value) mapped to 0-100% at the output.

Second, the 89xM math modules have the ability to perform mathematical computations on up to 4 analog input signals and provide an isolated analog output response based on the programmed equation. Individual channel scaling for both inputs and outputs and up to a 200 character equation makes the math module very versatile for complex response curves or transfer functions.

Third, the 151T/155H Transmitters also offer a linearizer function in the Transmitter Setup screen of the Acromag Hockeypuck Configuration Software package. By clicking on the Sensor Offset Curve button, the software will allow you to enter up to 22 breakpoints to facilitate up to 21 segments of linearization from input to output.

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To request a copy of our 200-page Signal Conditioning and Distibuted I/O Solutions Product Catalog e-mail us at sales@acromag.com or use our on-line form.

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Acromag, Inc.
30765 S. Wixom Rd.
P.O. Box 437
Wixom, Michigan 48393-7037
Phone: 248-624-1541
Fax: 248-624-9234
e-mail: sales@acromag.com
www.acromag.com