May 2003 . Volume 2 . Issue 4
 
Welcome to Sealevel Systems' monthly newsletter. The goal is to help our valued customers easily receive timely updates on the latest Sealevel developments. We appreciate your business and continue striving to be the best communications and I/O solutions provider in the market.

In This Issue:

Introducing New eI/O Family Modules
Last month we introduced the eI/O architecture along with the first three eI/O modules. This month Sealevel announces four additional eI/O modules along with a Starter Kit to accelerate application development. These modules attach to the M200 baseboard and are controlled using digital I/O (e.g. Sealevel’s 8010 PCI card or 8203 USB to digital module) via a standard 50-pin ribbon cable connector. eI/O modules offer a cost-effective, modular alternative for I/O interface. For ease of implementation, Sealevel includes our SeaI/O drivers, utilities, and programming samples for Windows 98/ME/NT/2000/XP and Linux to aid in the development of reliable applications for eI/O Family products. We also include an OPC (or OLE for Process Control) driver which makes possible interoperability between automation and control applications, field systems, and business/office applications.

251 Opto-isolated Output Module, Sourcing
The M251 is an optically-isolated emitter-follower output module designed to control up to 24VDC devices. 500VDC isolation protects electronics from over-voltage damage. Connection to field wiring is accomplished via a 10-pin removable terminal block. Output state of each bit is displayed via on-board LEDs. Requires power supplied to field terminal block from external supply such as the optional PS101.

For more details on the M251, please visit our website at:
http://www.sealevel.com/product_detail.asp?product_id=614



M270 Form C Relay Module, 2A

The M270 supplies 8 SPDT (Form C) dry contact relays that can be wired for normally-open or normally-closed operation at up to 2 amps. Field wiring is connected via two 12-pin removable terminal blocks. On-board LEDs indicate status of each relay (open/closed).

For more details on the M270, please visit our website at:
http://www.sealevel.com/product_detail.asp?product_id=616

 


M271 Form C Relay Module, 8A

The M271 supplies 8 SPDT (Form C) dry contact relays that can be wired for normally-open or normally-closed operation at up to 8 amps. Field wiring is connected via two 12-pin removable terminal blocks. On-board LEDs indicate status of each relay (open/closed).

For more details on the M271, please visit our website at:
http://www.sealevel.com/product_detail.asp?product_id=617

 


M280 Quad SSR Relay Module
The M280 module allows easy interface to one or two industry standard quad solid state relays (QSSR). The module can be configured as 8 inputs or 8 outputs and will accept AC and DC QSSRs. Input modules have built-in filtering to provide clean signals to the control system, and include transient protection circuitry. Field wiring connection is made via two 6-pin removable terminal blocks. Each I/O channel is protected by a 5A fuse which is socketed for easy replacement.

For more details on the M280, please visit our website at:
http://www.sealevel.com/product_detail.asp?product_id=618

 

eI/O M-Series Starter Kit
Get your project off to a fast start with our eI/O M-Series starter kit.
Each kit contains:

  • M200 - Baseboard
  • M240 - 8-channel optically-isolated input module
  • M260 - 8-channel Reed relay output module
  • M280 - Quad solid state relay module
  • 8010 - 32-channel PCI bus digital I/O board
  • CA167 - 40" ribbon cable
  • Eurotray mounting track with DIN rail mounting
  • SeaI/O and OPC software drivers included

For more details on the M299 Starter Kit, please visit our website at:
http://www.sealevel.com/product_detail.asp?product_id=620



Sealevel Application Notebook
Controlling Opto 22 Optomux Devices From a PCI Card
Opto 22 Optomux devices are still widely used in a variety of industrial control and monitoring applications. Opto 22 manufactures two ISA bus boards designed to provide the RS-422 signal for Optomux devices. These boards, the AC24AT and the AC422AT use a proprietary pinout on the serial connector. As an alternative for users without an ISA slot available, Sealevel manufactures a PCI board, the 7105-DB9, designed to directly interface with Optomux devices using this same pinout. We also manufacture two adapters to convert the pinout of any Sealevel RS-422 boards that use DB9 or DB25 connectors, the DB103 and DB104. These devices, combined with Sealevel's SeaCOM software drivers and utilities, are recommended by Sealevel for those users who wish to connect to their Optomux network via a PCI bus card, and each will allow the reuse of existing Optomux cabling.

 

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