Here is attached the manual instructions to connect Simatic S7 with EasyPLC using the Siemens Simatic S7 Driver for EasyPLC
https://drive.google.com/file/d/1rFmqF8fOQR29cgOdj1AAd5i0yc6H4-56/view?usp=sharing (https://drive.google.com/file/d/1rFmqF8fOQR29cgOdj1AAd5i0yc6H4-56/view?usp=sharing)
Update July 2015
The driver has been checked with Siemens last version (TIA PORTAL V13 & PLCSIM V13).
Has been verified that works correctly only with S7-300 and S7-400 CPU's family, due this CPU's continues using the PLCSIM v5.4 that is compatible with EasyPLC Simatic S7-PLCSIM Driver.
Not is possible to communicate in TIA PORTAL with other CPUS due PLCSIM V13 not is compatible with EasyPLC PLCSIM driver.
(http://nirtec.com/forum//images//PLCSIM.jpg)
Here is attached a document explaining how Siemens TIA PORTAL must to be configured in order to create a program to communicate with EasyPLC
Updated Feb 2021
Using TIA Portal with EasyPLC & Machines Simulator
https://youtu.be/qD-ayxChK98 (https://youtu.be/qD-ayxChK98)
TIA Portal v13-14-15-16
Attached the TIA Portal v16 and EasyPLC programs used in the video