HMI to Siemens S7-200 ISO TCP Connection Manual

This manual provides configuration details for connecting an HMI (Human Machine Interface) to a Siemens S7-200 PLC via ISO TCP protocol, including factory settings (IP address 192.168.0.1, COM port 102) and definitions of PLC read/write addresses. It covers register formats (word, double word), contact formats (bit addressing), data ranges, and important notes on data byte ordering, communication delays, and potential error messages.