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Tools for PLC programming PLC Programming Handbooks Sponsors Automation Geeks Popular Articles Navigation RSS User login PLCdev is your home for quality from and anything else you're using. We specialize in making to simulate your control environment so that you can debug your programs on your desk or in the field. And if that wasn't enough we offer educational materials, articles and tips for the novice to the advanced programmer. We invite you to so that you can receive timely updates to PLCdev. Thanks for coming and visit again soon! Setting up an S7 connection using TCP/IP The TCP/IP method of communication to the S7-300 and S7-400 's via TCP/IP communication module uses the S7WIN, S7WINSP, S7NT, or S7NTSP protocol. or to post comments ( categories: ) The Allen Bradley Logix5000 family (ControlLogix, CompactLogix, FlexLogix, SoftLogix) has some very good manuals. If you are just starting out or need a refresher here are the key manuals and the order I would read them. If you have RSLogix 50000 installed then you will find some of these in the Help > Online Books menu. Revision 16 also has some great videos in the Learning Center. ( categories: ) If you are a Siemens PLC user then you've more then likely have run into Statement List (STL) programming. STL corresponds to the Instruction List language defined in the IEC 61131-3 specific...