Forum Home › Forums › Communicating with Devices › Modbus › How to send command to rs485 Relay board
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hethongscada62.
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January 11, 2020 at 2:55 pm #6386
hethongscada62
ParticipantDear manjey73,
Now i return to my idea: to send a command to relay board from Communicator via TCP/IP using RS485-Ethernet converter. Can the communicator do it? If it can so how to configure?
Thanks a lot
Han HoangJanuary 11, 2020 at 6:09 pm #6388
manjey73ParticipantThe Ethernet-RS485 Converter has an IP and port and a TCP server management mode. In the Line settings, you need to configure as a TCP client by specifying the IP and port. Leave the Modbus RTU setting.
January 12, 2020 at 7:38 am #6390hethongscada62
ParticipantDear manjey, every thing is good. I am able to control relay remotely via TCP. It is great.
Now i am going to configure a rapid scada to send commands from buton in the scheme. Can it? How to configure it?
Thanks a lot.
Han HoangJanuary 12, 2020 at 1:50 pm #6391
manjey73ParticipantIt will be difficult for me to explain to you, since I use the latest version of RapidScada in Russian
You need to create input and output channels for your device.
Create an interface with a button.
In the properties of the button, specify the input and output channels.Option 1. In the output channel, specify “Use formula”, specify the value 768. This way the button will always send a trigger command to the relay
Just specify in the properties of the button-send the command immediately.To create two buttons with different purpose-Enable or disable. It will be necessary to make a duplicate of the output channels, in one of them as a formula to specify 256 (Disable), in the other 512 (Enable). Or use a more complex formula in one output channel
January 13, 2020 at 11:55 am #6392
MikhailModeratorNow i am going to configure a rapid scada to send commands from buton in the scheme. Can it? How to configure it?
You should watch this video.
January 29, 2020 at 2:36 pm #6450hethongscada62
ParticipantDear Mr.manjey73.
After Lunar New Year holidays i was tried to configure rapid scada to send commands to Relay board via scheme but i have not get the result. Could you help me how to create output channel? You can explain it by Russian. I can read it.
Thanks a lot
Han HoangJanuary 30, 2020 at 2:34 am #6452hethongscada62
ParticipantDear Mr.manjjey73.
The rapid scada is great. It works perfectly now.
Thank you very much
Han Hoang -
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