In expression language you can use getbit() function…https://docs.inductiveautomation.com/display/DOC79/getBit
In scripting… http://forum.inductiveautomation.com/t/getbit-equivalent-for-use-in-a-client-event-script/15538
Also… searching forum for just getbit gives plenty results… http://forum.inductiveautomation.com/search?q=getbit