6/24/2006 1:38 PM | |
Posts: 27 Rating: (0) |
There is one CP341 with Modbus Master Driver & 13 Slaves.How can I recieve data from these slaves? |
6/26/2006 7:25 AM | |
Posts: 27 Rating: (0) |
Hi, It is possible by programming in STL,LAD,FBD.but i have not any experience in CFC. |
7/1/2006 7:49 AM | |
Posts: 27 Rating: (0) |
Hi, How can I configure this network in NETPRO editor?( They are not siemens slaves.) I use FB8 for programming. Thanks, N.F. |
7/2/2006 10:13 AM | |
Posts: 27 Rating: (0) |
Dear Mr. Late, I try to configure PtP connection between master and each slave in Netpro,but I couldn't.Pls guide me. Thanks, N.F.[:cry:] |
7/4/2006 12:23 PM | |
Posts: 27 Rating: (0) |
Dear Mr. Late, Please find attachment.How much time is needed between each Req? Thanks, N.F. |
7/5/2006 9:03 AM | |
Joined: 4/21/2006 Last visit: 9/23/2024 Posts: 510 Rating: (24) |
I got the attachment from Mrs NF:AttachmentHw.zip (545 Downloads) |
7/5/2006 11:05 PM | |
Joined: 1/7/2006 Last visit: 11/17/2023 Posts: 2705 Rating: (318)
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[quote user="Mrs NF"]Please find attachment.How much time is needed between each Req? Dear Mrs, Hereby the results of some investigationI have done on the project....... [8)] First off all the drivers of the Modbus Slave and the Modbus Master are NOT up-to-date...... [:cry:] You may download the newest software from the next Links: Did you also load the drivers on the CP341? [:o] You didn’t need to couple in Netpro, this because it is a S7-300 CPU... this was earlier not known by me.... FB8 is a old one, I replace it whit the newest one. {V2.3 à V2.6},,, Place ‘S’ on the P_SND_RK “X” instead of ‘x’ on the P_SND_RK Because a Function Code 3 is a ReadCode for Registers, you have only to Send the length of the request, that’s 6 Byte! The Receive Block gets the data where is asked for in the Send into datablock DB60, because there are more slaves all the data of the slaves are coming into DB60 !!!! AttachmentEthmodbu.zip (691 Downloads) |
I hope that the answer will help, if you have still questions, don't hesitate to ask me. |
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7/8/2006 7:17 AM | |
Posts: 27 Rating: (0) |
Dear Mr. Late, I appreciate your assistance.I haven't related HW in our office.I will test it in site and send you its result in about 2weeks. Thanks, N.F. |
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