SiePortal

The integrated platform for your product selection, buying and support workflow - bringing together Industry Mall and Online Support.

Products & Services
- Menu temporary not available
- Menue temporary not available
- {{item.title}}
Support Support
{{(apiData.Support | filter:{'rank':1}:true)[0].title}} Support
- Menu temporary not available
- Menue temporary not available
- {{item.title}}
MySiePortal MySiePortal
{{(apiData.MySiePortal | filter:{'rank':1}:true)[0].title}} MySiePortal
- Menu temporary not available
- Menue temporary not available
- {{item.title}}
Cart ({{apiData.CartCount}})

Navigation

communication over modbus for s7 300

9/26/2014 10:19 PM	Rate (0)
ajaynagar Posts: 2 Rating: (0)	Anybady know how to connect S7-300 CPU313C with ModbusRTU Communication. pls help me
ajaynagar Posts: 2 Rating: (0)
Suggestion To thank Quote Answer

9/27/2014 2:02 AM	Rate (0)
dchartier Grandmaster-Expert Joined: 9/27/2006 Last visit: 12/26/2025 Posts: 12474 Rating: (2722)	Hello ajay; The official solution from Siemens is a CP 341 (serial communication processor) + Loadable Driver Modbus RTU: SIMATIC S7-300/S7-400 Loadable Driver for Point-to-Point CPs: MODBUS protocol, RTU format, S7 is master Recently, this solution has been proposed by forum member TIBI68: MODBUS RTU MASTER FOR CP340/341/441-X (NO DONGLE REQUIRED) Hope this helps, Daniel Chartier

Suggestion To thank Quote Answer
This contribution was helpful to 3 thankful Users smiffy hdhosseini TIBI68

12/12/2014 11:54 AM	Rate (0)
Min_Moderator Posts: 4758 Rating: (122)	New question published byalaaproject is split tothe thread with the subject can I use RTU protocol with cpu313c-2ptp. Best regards Min_Moderator
Min_Moderator Posts: 4758 Rating: (122)
Suggestion To thank Quote Answer

Share this page:

Share this page on...