This guide is intended for people, who want to make data acquisition from a PLC to a PC, via the protocol TCP/IP. The guide describes in details how to program the PLC. In the guide there will also be an example of how the code to receive the data on the PC could look like. The program on the PC will write the value sent from the PLC, to a text document.
I don't know how much longer Siemens is going to support documentation on the 505 series so I posted this here just in case.
Programming Manual for the entire Siemens S7-200 family of PLCs. Covers all of the commands addressing extra functions and software wizards.
These are the 1 hour and 2 hour primers for Siemens S7-200 PLCs and Step 7 MicroWIN32 software. Example programs and PDF files are enclosed.
The S7-200 Tips & Tricks is a large collection of application notes that are combined with example projects which allow the S7-200 applications to be easily understood and programmed quickly with STEP 7-Micro/WIN PLC programming software.