Hello All. I'm Modicon new User. I have worked on AB PLC5 and SLC5 previously. Now I working on a modification project using Modicon PLC TSX Micro 3721001 and Panelview Telemecanique MAGELIS - XBT P021010. And Using PL7 Micro Software. I've connected to the TSX Micro PLC and found ladder programs. My Question is as below- 1. What is diffrence transfer program and data, compare with save file in the file menu ? 2. Can I modify the program online and after i have changed can I just save it or transfer program from PLC to PC? Or I have to change the program offline and then transfer it from PC to PLC? 3) How can I connect to Panelview Magelis XBT P021010 using PC and how can I program to talk to TSX Micro PLC 3721001? 4) How can I find the value or bit from the Magelis XBT P021010 send to TSX Micro PLC and what is the word or bit used in the PLC ? 5) In this TSX Micro PLC in the slot 1 have a output card (TSX DSZ 32T2), Slot 2 (TSX DEZ 12D2) and Slot 3 TSX DSZ 32T2). Can I still add input and output card in the TSX Micro PLC and if I can how can I do configure it ? 6) I need some information to use PL7 software, where I can download or can someone send it to me please ? Thank you for your reply and Hope I can hear from you all soon. Personnel Contact Please email to me as below. dannykan@tpg.com.au Kind Regards Danny Kan