 |
Search Sci.Electronics.Basics |
|
|
|
|
|
|
 |
|
|
Sci.Electronics.Basics -> M-Bus
There are 3 messages in this thread.
You are currently looking at messages 1 to 3.
|
|
|
hi all
i'm searching for a M-BUS sniffer?
M-Bus is a special bus where the master will send a voltage (idle
state typically 36V) and an active voltage (12V below, but at least
12V). the slaves (max 250) are current sinks with an idle state of
1,0..1,5mA and a active state of 11..20mA. they also can use the max
1,5mA as power supply. the transfer rate is maximum 115k2bit/s.
has anyone somethink like this?
thanks
peda
|
|
|
|
Author: Jasen BettsDate: 17:13 13-07-07
|
|
On 2007-07-13, pedast@gmail.com <pedast@gmail.com> wrote:
> hi all
>
> i'm searching for a M-BUS sniffer?
> M-Bus is a special bus where the master will send a voltage (idle
> state typically 36V) and an active voltage (12V below, but at least
> 12V). the slaves (max 250) are current sinks with an idle state of
> 1,0..1,5mA and a active state of 11..20mA. they also can use the max
> 1,5mA as power supply. the transfer rate is maximum 115k2bit/s.
>
> has anyone somethink like this?
it sounds like a telephone line!
--
Bye.
Jasen
|
|
|
|
|
|
> it sounds like a telephone line!
>
> --
>
> Bye.
> Jasen
no it's not a telephon line. the master is changing the voltage and
the slaves are changing the current...
regards
peter
|
|
|
|
1 |
|
|
|
|
Contact | Electronic Portal
|
|
|
