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Full source included. Allows communicating with PLC S7 200. No special software/hardware/license are required. You have to have just a computer with COM port and PC/PPI cable (or RS232/485 converter). PC/PPI cable can be extended minimum 100 meters or more. This application allows to monitor:
96 inputs, 96 outputs, 64 memory bits, 96 TD200 messages bits, 4 real numbers, 22 WORDS/INTEGER numbers
DEMO Comm_S200_1_0.dll was tested on:
PLC CPU 226, Computer Pentium P4, Delphi 5, Some of functions was tested in VB 5,6 (but not all)