Hi Experts,

1)I am new user of S7-300. I want to Read some Modbus RTU or Modbus TCP/IP signals by using PLC Which Siemens module or CPU should I use???

2)I am using Wincc Scada 7.0 Software in which i designed multiple screens,i want to share screens on web page how can i do this ??

please Help 

Hi,

1.depending on Your application you can chose the CPU and add cp341 communication processor  for modbus rtu communication.

along with communication processor you need to purchase

a.dongle depends on your application (modbus master or modbus slave)

b.modbus loadable drivers

2.You can purchase web navigator add on software along with wincc 7.x for sharing the screen in web page.

Thanks For Reply.

Could you tell me CP341 order code number with dongle .

Does Web navigator is built in Wicc Scada Software.???

Hi

1.6ES7341-1CH00-0AE0-Rs485/Rs422

2.select the dongle fr your application

If you are using the modbus master select the dongle as modbus master and when you using as slave select the slave .

buy the loadable software if u dont have it already.