Posted 18 Mar 2008 The issue, I have been asked to find a way to have wireless devices at up to 20 locations to be able to fire inputs on a SLC-5/04. Any Ideas? Share this post Link to post Share on other sites
Posted 18 Mar 2008 You barely list enough information. I have a few questions? How do the wireless devices communicate? If they can reach a PC it can be the relay point? There are wireless modems which can work with AIC+ units and do DH+ or Dh485 over wireless. OTher AB posters have mentioned these. Share this post Link to post Share on other sites
Posted 18 Mar 2008 I have one of this company's wireless gateways connected to a 5/04 with several field wireless units. http://www.elprotech.com/ Not cheap but works well. Share this post Link to post Share on other sites
Posted 18 Mar 2008 Depending on what you are trying to pull off, Phoenix Contact is selling a prepackaged system that does pretty much what it sounds like. My only complaint about Phoenix is that getting data sheets is tricky business with them...it LOOKS easy, until you try. Share this post Link to post Share on other sites
Posted 19 Mar 2008 Several AB encompass partners sell wireless IO products and wireless IO cards for the SLC rack. Check with your AB distributor. Share this post Link to post Share on other sites
Posted 19 Mar 2008 I would like to use RF devices to commuincate with a PLC. I want to use RF because there would be more flexablity. I have used RF in the past but only from one location, not 20. Share this post Link to post Share on other sites
Posted 19 Mar 2008 We are using Freewave Radio system that is a broad spectrum freq setup. This is using the DF1 comm port for transmitting the data back to the master radio. Currently have 17 station with a scan time of about 18 seconds or so. Share this post Link to post Share on other sites
Posted 20 Mar 2008 I guess would I was thinking was like unlocking a car by remote. A remote push button that I could fire an input with. Seems simple enough. Share this post Link to post Share on other sites