Help to get read DNP3 analog signal from SEL-351 protection relay

[Kartheek1512]

Hi Ivan,

I am new to the DNP3 communication so please pardon me if I ask you stupid questions. I would like to read data from a relay using Raspberry pi 3 node-red. I am able to successfully get data from modbus devices. I was looking if you have any node.js platform or node-red node.

Thanks,
Kartheek

[IvanGaravito]

Hi, currently I don't have it implemented, but can be easily programmed to read/write/operate analog/digital input/output data from/to any DNP3 compliant device.

Please tell me more about what are you planning to do?

[Kartheek1512]

I am trying to pull an analog DNP3 signal coming from a SEl 651R relay into the Pi via serial Rs232 wiring. The SEL 651R signal indicates the power at which a solar inverter has to operate. I am able to control the inverter but I need help with getting the dnp3 signal from the SEL.

[IvanGaravito]

Well, yeah it is easy to acquire the analog signals using DNP3.

Currently this DNP3 library is under desing and development, so soon it can be applied for specific solutions.