I am using Labview to prepare a HMI to use with AB CompactLogix PLC. The problem faced by me is I am unable to select a particular bit ( say to connect it with a button , TRUE/FALSE type ) from a boolean array. All I can do is get a particular tag data( Double integer type ) from PLC through OPC and convert that data to boolean array. The array can be represented by a series of 32 buttons ( as I am using a 32 input fields type input card of the PLC ) . But say I want to access only the 4th bit of the boolean array and turn on/off a LED based on its output. How to do that ? Please help !
--- Anirban Hazra
Electrical Engineering Student
4th year , B.Tech
Netaji Subhash Engineering College
Kolkata , India