So its my duty to show him every thing . whenever we finished our challenge we needed two five volt power supply module , I'd only one i give it to him and made a single myself with in 15 minute . И ещё- рядом есть место для другого светодиода. http://programmablelogiccontroll97395.aboutyoublog.com/15355475/5-simple-techniques-for-programmable-logic-controller