[vz-dev] iskra mt171

Ralf Löhmer rl at loehmer.de
Wed Dec 12 19:06:10 CET 2012


Am 12.12.2012 18:41, schrieb Jakob Hirsch:
> Ralf Löhmer, 11.12.2012 20:44:
>> When you start with 300 bps, you get back the meter's answer
>> "/ISk_*5*_MT171-0xxx<\r><\n>"
>> The _*5*_ means you can go on with 9600 bps.
>> But before switching to 9600 bps send with 300 bps
>> _<ACK> 050 <CR><LF>_    this is (hex 06 30 35 30 0D 0A) and it means :
> Does this actually work? With 050 I get no reply at all, with 040 I get
> the data, but still with 300 bps. I always thought this is because the
> MT171 is a very limited device...
>
>
Yes it works, but play a little bit with a delay (50...300ms) between
the calls. to quick doesn't work.
rl


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