4/27/2016 2:53 PM | |
Posts: 21 Rating: (1) |
I have the same problem! MB_COMM_LOAD 2.1 version MB_MASTER 2.1 Version I used CB 1241 for RS 485 communication with Conzerve EM 6400 Meter. I am able to run MB_COMM_LOAD, giving REQ to MB_MASTER i am getting BUSY signal! As i know i programmed everything correct. ------------------------------------------------------------------------------------------ AttachmentTrail Final_P.zip (136 Downloads) |
Last edited by: Blue Moderator at: 4/28/2016 9:01:12 AMNew subject after splitting |
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4/28/2016 11:31 AM | |
Posts: 21 Rating: (1) |
Hello Duris_I Please see the attachments. 1.00-means address of the meter(slave) O – means error 9600- baud rate Eve – Even parity 1 – stop bits Can you elaborate you sentence “How you prepare DB block for receive, what structure has?” With regards,
AttachmentPics@Siemens Service.zip (146 Downloads) |
4/28/2016 1:51 PM | |
Posts: 3093 Rating: (323)
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Hello Chaya, Regards, |
This contribution was helpful to1 thankful Users |
4/29/2016 2:21 PM | |
Posts: 21 Rating: (1) |
It was mentioned like this: all parameters direct reading, little endian float, no scaling required. |
5/1/2016 2:12 PM | |
Joined: 4/28/2015 Last visit: 2/7/2024 Posts: 10533 Rating: (819) |
Hello Chaya, I got idea, look to this site for perfect applications, you can simulate Modbus RTU Master and Slave on one PC, connection can be established via 2 serial ports on PC or via some USB serial adapters connected with serial cable together. You can set on Modbus Slave your destination register with needed value (50 Hz or 220V). Send request from Master application and after receive, check that frame, also you can then better understand how the Real value can be transfered/converted. http://www.simplymodbus.ca/TCP.htm Also this site can be helpful: https://en.wikipedia.org/wiki/Floating_point Give info. |
With best regards... |
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