D
David Wisti
Just to close the topic, I finally did find the links to the examples. Looks like a S7 can talk Modbus TCP as a client in these examples. Thanks Oleg!
http://msx-box.blogspirit.com/archive/2007/03/21/simatic®-s7-steuert-die-msx-box-–-das-beispiel.html
http://msx-box.blogspirit.com/files/modbusTC_read_8dig_inp.2.zip
http://msx-box.blogspirit.com/files/modbusTC_set8_dig_out.2.zip
http://msx-box.blogspirit.com/archive/2007/03/21/simatic®-s7-steuert-die-msx-box-–-das-beispiel.html
http://msx-box.blogspirit.com/files/modbusTC_read_8dig_inp.2.zip
http://msx-box.blogspirit.com/files/modbusTC_set8_dig_out.2.zip