SeaI/O Evolution

A couple of years ago, was involved in a custom project for a particular customer that involved the creation of a custom 1U rackmount “super” SeaI/O. Standard SeaI/O products include 32 I/O points. The task for this project was to package 32 digital inputs, 32 Form C relay outputs, and 32 differential analog inputs into a standard 1U rackmount configuration. High density connectors were used to get the signals out of the box, which led to the development of an easy to install I/O termination panel.  The product used Ethernet for communicating and since the SeaI/O family relies on the Modbus protocol, the system was polled using the Modbus/TCP implementation.

We have completed another prototype for this same customer using the I/O technology of the original system but with the extended functionality of our standard SeaI/O family. In this case, the customer did not require customized packaging as the standard SeaI/O packaging was more than adequate.  They did, however, need the same connectivity in terms of the I/O with only slight modifications and in much lower I/O counts. This project required 8 digital inputs, 8 Form C relay outputs, and 8 single ended analog inputs. They also requested that the product have two software configurable serial ports. After analyzing the requirements and with the success of our ARM9 based R9 products, we decided to design this product as a new base SeaI/O product with an “intelligent bridge”.

This architecture gives us the ability to add the power of a 200MHz ARM9 engine to any existing SeaI/O product making it a powerful I/O computer. Now the ARM9 processor can handle the polling of the underlying I/O while running an embedded application providing event notification of preprogrammed triggers. The ARM9 engine greatly extends the power of the product line and opens up an entirely new realm of applications. Embedded operating systems such as Windows CE and Linux run on the platform making for a reliable, low power, cost competitive engine for a host of I/O applications.

We continue to work to define the standard software that will be provided with this new line of products. For now we have implemented a Modbus/TCP bridge function and serial server software that allows the ARM9 to poll the I/O and the serial ports to appear as standard COM ports to a host system. This allows us to meet the immediate requirements of this particular customer. However, we look forward to and are very excited about the official release of these new products.

One Comment

  1. Art Connelly
    Posted April 6, 2015 at 2:59 pm | Permalink

    Hi Jeff

    I knew you would find a way to exceed!!!


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