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To find a cause, debug and log needed. The source code is not enough.
There is a new possibility recently developed: you can install Rapid SCADA on your RPi and pass data from RPi to PC using Rapid SCADA internal protocol. This functionality is implemented by Rapid Gate module. You can download it by this link. In case of follow up questions, be free to ask.
Send me a letter to receive a trial key for Rapid Gate.
Hello,
The communication log “says” that RPi drops the connection. Do you develop the Modbus server by yourself or use 3rd party software? Is there any logs of the Modbus server?
You need to open port on Windows Firewall, allow incoming connection on the router and redirect data to your PC using NAT (on router).
There is no SCADA specific, just network administration.
Read this section. Pay attention to Timeout and Delay parameters of communication.
Hello,
First of all, you need to find out the bottle neck step by step. Please provide more details what are “locally displayed value” and “value on SCADA screen”? Screenshots will help.Are you on Raspbian?
Yes.
You can try to install latest Mono manually as written here http://www.mono-project.com/docs/getting-started/install/linux/
I did it on Ubuntu just for testing.Also you can install this utility and try to establish a connection between internal and external computers.
Hi,
Does your web server located within home network or on a hosting in the Internet?
Seems you perform the right settings. What errors in log files of server and web application?This parameter is very useful for tuning charts. If data are stored every 5 minutes, for example, you need to increase Chart gap to 300 or more to make trend continuous.
On the other hand, if you set it to 300 while data are stored every 1 minute, you can’t recognize when communication with device is unstable.
