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It's about Ester Alpha II meters
I only found an old "alphaplus" software for DOS to read data.
It uses the same HARDWARE of the RS232 optical port as the IEC62056 but of course it is not the same handshake and not the same protocol so it can't seem to be read with Gurux.
Does anyone know the software to read it or at least **the name of the protocol** to start with?
thanks!
Image
Hi,
Hi,
I'm not sure, but it might use IEC 62056-21 or 61107 as it was called in those days. Connect with serial port with Baud rate 300 7Even1.
The send /?!\r\n.
IEC 62056-21 is used if you are receiving a reply.
BR,
Mikko
Hello Mikko,
Hello Mikko,
I first tried that IEC mode E at 300bps /?!\r\n but protocol is very different,
Meter sends periodically at 1200bps like a Keepalive
02 83 C7 89
The DOS program start connection string is something like this
02 18 06 08 01 00 30 3e
No more clues by now
Hi,
Hi,
There are similarities with IEC 62056-21 (61107), but because it's very open, the content of the data might be manufacturer-specific. I believe that the only way to solve this is if you find documentation that defines the messages. It might be easier (and cheaper) to change the meters to the newer ones.
BR,
Mikko