I am reading values from energy analyzer with modbus.I have modbus gateway on the network.And this gateway connects the analyzer with rs485.I am able to comminicate 4 analyzer there is no proplem but after 4, 5,6,7,8,9.th devices i can not comminicate.
Firstly, i checked all cable connections it was okay.
i tried with modbus poll and i connected all devices.But with rapid scada i am not comminicating with all devices.
I tried with 5th device as like 4th device.I was able to connect no proplem
I am sending you some pictures.I need some help.thank you very much.
pictures
picture 1
Why is not this forum has attach the image file button??? I can not make hand drawing here :)))
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