s7 300 with labview 7

[fubu16]

how can i scan "serial" data from the mpi interface of a siemens s7 300 with labview 7

[nschedlb]

Hello Fubu16,

From the following Link,

http://zone.ni.com/devzone/conceptd.nsf/webmain/CC021CD15890283286256A33006EBA74?opendocument

you can extract:

Siemens S7 PLC is a Profibus device that can communicate to a Profibus network through MPI protocol using Profibus interface card, such as an Applicom board. It can also be configured for direct connection with a PC using HMI Adapter, a device that translates MPI protocol into RS-232 protocol. To connect a Siemens S7 PLC to a PC, connect the HMI Adapter to the MPI port on the PLC, and connect the adaptor to the PC serial port using a null-modem serial cable

for more info on the HMI Adapter go to:

http://digital.ni.com/public.nsf/3efedde4322fef19862567740067f3cc/e1e8217c676e56e4862569fb00734615?
OpenDocument

Hope this helps

[fubu16]

hi nschedlb,
the thing is....i have already connected a s7 300 to PC, with a HMI adapter!
my problem is to analyse the MPI protocol in labview without a "*.dll" a opc client or another driver!!
i would like to analyse the MPI protocol direct from my serial port, because my intention is to export my vi later to "PDA"......and actually the pda module dosent support ==>("*.dll" a opc client or another driver)!!!

please help
and thank you for response