Whooly

Hi! I also tried multi column listbox but they haven't got extra functionailties. You can't easily add combobox, path and other columns. So an alternativ is to use array. But they are alse very limited. If u change a propertie of the control it changes everywhere. You can't change a color in one row. And can't use Xcontrol in arrays. I made a little discovery yesterday i can get a reference to the clicked arrayelement. So i can change the value easily. But i don't know why it works because i put a probe on the reference it points every time to the same. ClickedArrayElementRef.vi

Now it looks like we will use low cost pxi system. Because the deadline will be close we can't afford to invest to learn new technologies. We will use PXI even if a bit more expensie than plc or cRIO but wi will save money on training, developing time and OPC server. I searched the internet and i haven't found master PROFIBUS gateway. The Bosch tightening spindle is able to save torque data on an FTP serve so the PXI will read that data file and will control the spindle over I/O signals. The communication with the valve terminals and RFID readers will be over Devicenet. Thank you for replyes. Whooly

Hi All! I would like to ask for a little help. I’ve been developing LV RT application with PXI systems for 4 years. Now our company won a bigger assembly line project. The products will moved with a chain conveyor system between the assembly stations and the testbench. Rfid identification will be in each important location for storing state information. The system should communicate with tightening spindles over Profibus. There will be cylinders, optical sensors, 1-2 hundreds digital I/O signal and a testbench with RT PXI system. What type of control system should we use? This is a typical PLC project but our NI sales manager recommended CompactRIO. I searched for customer’s solutions built with cRIO on the ni.com but i haven’t found similar projects. Mostly cRIO used for high speed daq and control with FPGA. Does cRIO able to deal with a lot of parallel tasks and communicate over Profibus, handle RFID readers? I think FPGA can make programming difficult. Sorry for bad english Whooly