S7200 and TP177B communication issues

Good Morning,

What I am trying to do is make an S7-200 (CPU224) communicate with a TP177B PN/DP. More specifically, I want to use a “software switch” located on HMI in order to enable/disable a digital output in CPU. The connection will be used is RS232. I used a Multi-Master Cable to download the projects on CPU and HMI, however I suppose that during their communications the devices should be connected with a simple RS232 cable, am I right? Could somebody describe to me the procedure for tag configuration setting? In addition, is there any tutorial for tags correlation between CPU and HMI? Please note I am using MicroWin SP7 v.4 and WinCC flexible 2008.

Thank you in advance

Thorfano

....The connection will be used is RS232. I used a Multi-Master Cable to download the projects on CPU and HMI, however I suppose that during their communications the devices should be connected with a simple RS232 cable, am I right?