MODBUS RTU MASTER FOR CP340/341/441-X (NO DONGLE REQUIRED)
Created by: TIBI68 at: 7/5/2014 6:15 PM (211 Replies)
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| 8/11/2014 1:25 PM | |
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Posts: 5 Rating:
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FB8 (R_TRIG: Detection of the rising edge ) is Already present in the library , and we cant change the FB number of your block.?? |
| 8/11/2014 2:10 PM | |
Joined: 12/1/2009 Last visit: 7/14/2025 Posts: 672 Rating:
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Dear HamidShiakh, thanks for your comment. You are free to use Loadable Modbus Master RTU driver from Siemens instead. Let me know If youneedtheSiemens order number. Best Regards. |
Last edited by: TIBI68 at: 8/11/2014 2:11 PMGive us your feedback and show us your respect! |
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| 8/14/2014 9:24 AM | |
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Joined: 12/1/2009 Last visit: 7/14/2025 Posts: 672 Rating:
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Good Job Baron, try to change the S7ADDR to DB11 DBX0.0 BYTE 1. The simulator has a "Monitor" option to see the traffic. Kindly send me a snapshotof that traffic window. No problem we will get it work! Best Regards. |
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| 8/14/2014 9:46 AM | |
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Joined: 12/1/2009 Last visit: 7/14/2025 Posts: 672 Rating:
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Dear Baron, I sent you a PM. Best Regards. |
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| 8/14/2014 11:43 AM | |
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Joined: 12/1/2009 Last visit: 7/14/2025 Posts: 672 Rating:
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Dear Baron, I sent you a PM. Best Regards. |
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| 9/11/2014 9:56 AM | |
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Posts: 9 Rating:
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Dear All, I program Modbus RTU with hardware: - CPU 313C-2DP. - CP 341 (Without Dongle). - Multimeter (RS485-Modbus RTU). I use library of "TIBI68". Software online same picture attach. But CPU 313C-2DP not SEND or REC data. CP341 RX&TX led not flash. Help me please!
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| 9/11/2014 10:35 AM | |
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Joined: 12/1/2009 Last visit: 7/14/2025 Posts: 672 Rating:
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Dear AchutVn2T , thanks for using the library. I sent you a PM. Don't worry I will help you. Best Regards. |
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| 9/11/2014 11:25 AM | |
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Posts: 9 Rating:
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Dear TIBI68, I add a picture.zip file of project. Thanks for your reply,
AttachmentPictures.zip (1441 Downloads) |
Last edited by: AchutVn2T at: 9/11/2014 11:38 AM |
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| 9/24/2014 8:14 PM | |
Joined: 11/6/2013 Last visit: 4/8/2025 Posts: 26 Rating:
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Welcome TIBI68. I download Your library and use in my project to read and write temp regulators from ERO electronic company. Read works prefectly but write into regulator is imposible. I check probbably all configuration option and i can' write register SETPOINT (SP) into regulator. Of course i chec of this register is READ and WRITE. I check all settings on your block. This is documentation to regulator: http://www.eroelectronic.com/index.php?route=product/download/get&download_id=20 Please check and if possible tel what is a solution to write register. I need write only setpoint value. Best regards. Attachmenteng.822e PKC-MKC-2.zip (1301 Downloads) |
Last edited by: BENIO at: 9/24/2014 8:34 PMI add MODBUS documentation to this regulator. |
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| 9/24/2014 10:36 PM | |
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Joined: 12/1/2009 Last visit: 7/14/2025 Posts: 672 Rating:
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Dear BENIO, I dont see any reason why it should not work. If you dont mind you can send an email withyour programfor testing but I doubt that there is the problem. As per the manual you should write your setpoint into register 40138. There are some conditions to be checked for remote control: Checkthe manual page 72 "SERIAL LINK". Best Regards. |
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| 9/25/2014 8:02 AM | |
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Joined: 11/6/2013 Last visit: 4/8/2025 Posts: 26 Rating:
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Welcome. Thanks for reply. In regulator i set proper setting. REDING work fantastic. ( 9660,8EVEN) I attached scrren. Today i check error in status on your block. Its 8600 VALUE. If You want a can make remote acces to PG station to look on working organism :) Attachmentscreens.zip (1275 Downloads) |
Last edited by: BENIO at: 9/25/2014 8:06 AMI send You mail with remote solution to my PG. |
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| 11/11/2014 1:22 PM | |
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Posts: 24 Rating:
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TIBI68, You told you will modify your blocks and add some more functionality. Can I ask you to add the parameter for swapping not just bytes in word but words in double words too? Sometimes for some devices it would be very usefull for reading DInt or Real values... |
Last edited by: Hopling at: 11/12/2014 7:23 AM |
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| 11/25/2014 2:21 AM | |
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Posts: 2 Rating:
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Good day TIBI68 I'm using your library for the CP341, followed your manual and referenced the example code. As far as I can tell everything is correct. The Tx LED is flashing on the CP341. Before I get to the slave, the error output of FB10 is set with each MBMAREQ, yet the STATUS out of FB10 remains 0 (no failure). Any ideas? I have attached the project (tiny - 381 kb). Thanks --- new developoment --- Interfaced PLC to Modbus simulator, and it worked! Doesn't seem to work with our SELCO 6200 at the moment, although communications settings are the same. Attachment315pndp.zip (1188 Downloads) |
Last edited by: Andrew_E at: 11/25/2014 6:54 AM |
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