EMH meter is only responding with ACK on read.

pwitab / iec62056-21

A Python library for IEC62056-21, Local Data Readout of Energy Meters. Former IEC1107

BSD 3-Clause "New" or "Revised" License

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EMH meter is only responding with ACK on read. #8

Open Krolken opened 4 years ago

Krolken commented 4 years ago

When trying to solve some user issues: #4 I found (after some other fixes #7 ) that my test EMH meter is responding with only an ACK on a read command (R1). As I read the standard read commands should be answered directly with the data. If I wait i get a BREAK message from the meter so it seems that the meter expects me to send more data in the read-command. But it is not a partial blocks command (R3/R4) so it seems wrong.

I have check with the manufacturers documentation.

Krolken commented 4 years ago

Only the R5 command is mentioned in the EMH manual. Maybe need to contact tech support att EMH.