REL-16 User Manual Part Number 3095 www.sealevel.com PO Box 830 Liberty, SC 29657 864.843.
Table of Contents INTRODUCTION......................................................................................................................... 1 OTHER SEALEVEL ISA DIGITAL I/O PRODUCTS .......................................................................... 1 BEFORE YOU GET STARTED................................................................................................. 2 WHAT’S INCLUDED .......................................................................................................
Introduction The REL-16 provides 16 reed relay outputs. The outputs offer high quality, long life, low current (10 Watt maximum), dry contact switch closures. Reed relays are well suited for low current applications. The relays are normally open, and will close when energized. The REL-16 is designed to be used with a variety of Operating Systems including Windows 98/NT/ME/2000/XP, Linux and DOS.
Before You Get Started What’s Included The REL-16 is shipped with the following items. If any of these items is missing or damaged please contact Sealevel for replacement. REL-16 Adapter Sealevel SeaI/O Software CD Optional Items Depending upon your application, you are likely to find one or more of the following items useful for interfacing the REL-16 to real-world signals. All items can be purchased from our website (http://www.sealevel.com) or by calling (864) 843-4343.
Card Setup The REL-16 contains several jumper straps for each port that must be set for proper operation. Address Selection The REL-16 occupies a total of 2 I/O locations. The DIP-switch (SW1) is used to set the base address for these locations. Be careful when selecting the base address as some selections conflict with existing PC ports. The following table shows several examples that usually do not cause a conflict.
Software Installation Windows 98/ME/NT/2000/XP Installation Do not install the Adapter in the machine until the software has been fully installed. 1. Start Windows. 2. Insert the Sealevel Systems CD in to your CD drive. 3. If ‘Auto-Start’ is enabled for this drive the software will automatically launch. Otherwise, point your browser to the ‘Index.htm’ on the root directory of the CD 4. Select ‘Install Software’. 5. Select the Part Number for your adapter from the listing. 6.
Linux Installation Note: You MUST have "root" privileges to install the software and drivers. 1. Login as "root". 2. Mount the CDROM by typing: mount -t iso4860 /dev/hdc /cdrom Note Your cdrom may not be /dev/hdc it could be /dev/hda, /dev/hdb, /dev/hdd, or if you have a SCSI drive /dev/sda, /dev/sdb, /dev/sdc, etc. You may mount the CDROM to any location, the /cdrom is just a common example. 3. Next change to the directory where you mounted the CDROM: Ex.
Physical Installation The adapter can be installed in any ISA PC expansion slot. Do not install the Adapter in the machine until the software has been fully installed. 1. Turn off PC power. Disconnect the power cord. 2. Remove the PC case cover. 3. Locate an available 5V PCI slot and remove the blank metal slot cover. 4. Gently insert the PC expansion slot into the slot. Make sure that the adapter is seated properly. 5.
Programming the REL-16 Sealevel’s SeaI/O software is provided to assist in the development of reliable applications for the Sealevel Systems family of digital I/O adapters. Included on the SeaI/O CD are driver functions for use in accessing the I/O as well as helpful samples and utilities. Programming for Windows The SeaI/O API (Application Programmer Interface) provides a variety of useful high-level function calls implemented in a Windows dynamic link library (DLL).
Output Ports (Reed Relay) Reed relays provide very high quality, long life, low current (10 Watt maximum), dry contact switch closures. Reed relays are not suited for high current applications, and can be destroyed by inductive load switching, where a spark occurs across the contacts internally. The relays are normally open, and close when energized.
Reading the Outputs The relay ports return the ones complement of the value that is currently being used to drive the relays. When using the API the actual value is returned not the complement of the value. Writing the Outputs: The output ports are the only ports that can be written. The relays on a standard REL-16 are normally open. To close a relay a one must be written to the appropriate bit.
Electrical Characteristics Features Selectable I/O port addressing from 100H – 3FFH 2 sets of SPST relays with each having 8 Relays Highly reliable 10 VA DIP reed relays utilized Multiple adapters can reside in same computer All address, data and control signals are TTL compatible Specifications Output Relays Contact Max Power Rating: Contact Voltage Maximum: Contact Current Maximum: Contact Resistance, Initial: Rated Life: • Low Load: • Maximum Load: Contact Speed: • Operate: • Release: • Bounce: Maximum
Example Circuits Output Circuit © Sealevel Systems, Inc.
Appendix A - Troubleshooting Following these simple steps can eliminate most common problems. 1. Install software first. After installing the software then proceed to adding the hardware. This places the required installation files in the correct locations. 2. Read this manual thoroughly before attempting to install the adapter in your system. 3. Use Device Manager under Windows to verify proper installation. 4.
Appendix B - How To Get Assistance Begin by reading through the Trouble Shooting Guide in Appendix A. If assistance is still needed please see below. When calling for technical assistance, please have your user manual and current adapter settings. If possible, please have the adapter installed in a computer ready to run diagnostics. Sealevel Systems provides an FAQ section on its web site. Please refer to this to answer many common questions. This section can be found at http://www.sealevel.com/faq.
Appendix C – Silk Screen – 3095 PCB © Sealevel Systems, Inc.
Appendix D - Compliance Notices Federal Communications Commission Statement FCC - This equipment has been tested and found to comply with the limits for Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
Warranty Sealevel's commitment to providing the best I/O solutions is reflected in the Lifetime Warranty that is standard on all Sealevel manufactured products. We are able to offer this warranty due to our control of manufacturing quality and the historically high reliability of our products in the field. Sealevel products are designed and manufactured at its Liberty, South Carolina facility, allowing direct control over product development, production, burn-in and testing. Sealevel Systems, Inc.
