Skip to Content

SiePortal

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

SiePortalDeutsch

Search

Home
Support Support
{{(apiData.Support | filter:{'rank':1}:true)[0].title}} Support
- Menu temporary not available
- Menu temporary not available
- Menue temporary not available
- {{item.title}}

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

CP341 as Master in ASCII protocol - what should be assgined as send packet?

Created by: ChessMaster at: 8/10/2011 12:28 PM (7 Replies)

Rating (0)

Thanks 0

8 Entries

8/10/2011 12:28 PM	Rate (0)
ChessMaster Posts: 84 Rating: (1)	SexDriver Hi ,everyone I have one CP341-1AH01-0AE0(RS 232C Interface) Module. Now I wantusing ASCIIfunction to senddata. Iknow I have to choose FB8 P_SND_RK CP341, but I don't knowWHAT the SF,R_CPU_NO,R_TYP,R_NO,R_OFFSET,R_CF_BYT,R_CF_BITparameters I should fill in. Please help me, thanks a lot. Late Hi, Please place the mouse on the block and try <F1>, there you get information about the parameters. If you installed the Serial software for the CP341, then there is also a handbook installed, there you could find everything. Dear Friend Can you send me manula for this Function, I have the same problem, I have instaleld serial ptp and master modbus but help of P-SND-RK not available I don know what is send packet in ASCII mode, Regards Navid Splitted from Question About CP341 ASCII.
ChessMaster Posts: 84 Rating: (1)	Last edited by: O_Moderator at: 8/16/2011 8:51 AM new subject after splitting
Suggestion To thank Quote Answer

8/14/2011 1:53 PM	Rate (0)
ChessMaster Posts: 84 Rating: (1)	Dear Expert Is there anybody here that have experience in MODBUS programming in ASCII mode. Please help me. I have conencted with MODSCAN software to modbus slave device, " DATALOG 16, for HAVAC" I know what is the send packet. But I can not create this send packet. I have installed MODBUS MASTER, and I see in list of driver for CP341, ASCII has been added, When I select this there is not any option for downlaoding driver. Shall I download MODBUS MASTER ASCII for this communication? Can any body tell me for ASCII programming like RTU we can use P-SND-RK and P-RCV-RK ? And if yes how we can assign send packet. Thank you for your attention.
ChessMaster Posts: 84 Rating: (1)
Suggestion To thank Quote Answer

8/15/2011 10:07 AM	Rate (0)
smiffy Platinum Expert Joined: 1/17/2007 Last visit: 3/10/2025 Posts: 1557 Rating: (540)	I have made my own modbus protocol driver using the ASCII driver for the CP341. I can give you a few pointers. However, I cannot quite see what you are asking for? Could you please explain it again in clearer terms.
	Programming today is the race between software engineers building bigger and better idiot proof programs, and the universe producing bigger and better idiots. So far, the universe is winning...
Suggestion To thank Quote Answer

10/2/2011 10:07 AM	Rate (0)
ChessMaster Posts: 84 Rating: (1)	I need manual to undersatand how to connect to slave device through ASCII protocol. And if anybody have sample is highly appreciated to put it here. Thank you
ChessMaster Posts: 84 Rating: (1)
Suggestion To thank Quote Answer

10/4/2011 3:12 PM	Rate (0)
smiffy Platinum Expert Joined: 1/17/2007 Last visit: 3/10/2025 Posts: 1557 Rating: (540)	When you say ASCII protocol, do you mean raw ASCII or Modbus ASCII, as the answers are different.
	Programming today is the race between software engineers building bigger and better idiot proof programs, and the universe producing bigger and better idiots. So far, the universe is winning...
Suggestion To thank Quote Answer

10/9/2011 1:44 PM	Rate (0)
ChessMaster Posts: 84 Rating: (1)	Dear friend I am looking for Modbus ASCII.
ChessMaster Posts: 84 Rating: (1)
Suggestion To thank Quote Answer

10/9/2011 2:57 PM	Rate (0)
Amit_86 Platinum Member Joined: 3/18/2008 Last visit: 12/8/2023 Posts: 1750 Rating: (272)	Dear Cheesmaster, As per my knowledge you will find an example Project under Sample Project in Step7 Software provided that you have installed Modbus Master software. To view Sample Project >>>>Open Simatic Manager>>>>go to FIie option>>>>Select Open under that you can see Sample Project for MODBUS ASCII.
	VANDE MATARAM.....
Suggestion To thank Quote Answer

10/15/2011 12:06 PM	Rate (0)
ChessMaster Posts: 84 Rating: (1)	Dear Friend I could not find sample with CP 341 Modbus Ascii, could you please upload this sample for me. thanks alot
ChessMaster Posts: 84 Rating: (1)
Suggestion To thank Quote Answer

|

Share this page:

Share this page on...

Follow us on