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rscada / libmbus

Meter-bus library and utility programs
http://www.rscada.se/libmbus
BSD 3-Clause "New" or "Revised" License
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read more one meter ? #101

Closed zhapwey closed 8 years ago

zhapwey commented 8 years ago

hello i am completely new to this. I can read multiple counters in a facility or all at once?

lategoodbye commented 8 years ago

I'm not sure that i understand your question. You need to select a meter via address (primary 0-255 or secondary XX:XX:XX:XX:XX:XX) and then request the data of this meter.

Please look at: http://www.m-bus.com/files/MBDOC48.PDF

zhapwey commented 8 years ago

first thanks for your reply and sorry my english is very bad.

I read one by one all the devices without problem with mbus-serial-request-data. I find them all without problems my question is i can read multiples devices with a single command

lategoodbye commented 8 years ago

There is a special primary address 0xFEh which makes all meter reply, but this would lead to bus collisions in case of multiple slaves. So according to your question the answer would be: no