ATTENTION: This version has implemented changes to the protocol which makes it INCOMPATIBLE with older Buderus EMS or EMS plus systems!

It was written and adapted to work with a new Bosch Condens 9800i heater with a UI800 control panel.

IT NEEDS A PATCHED VERSION OF DANNY BAUMANN'S ETHERSEX EMS PATCHES, TOO!

The EMS dialect used by Bosch flips the meaning of the highest address bit!

old (Buderus): bit 7 set == polling / sending, bit 7 not set == answer / writing

new (Bosch): bit 7 set == answer / writing, bit 7 not set == polling / sending

That means that all the addresses have now values greater than 0x80!

Bosch EMS heating control data collection daemon

ems-collector logs serial data from a connected Bosch heating by interpreting the incoming data and writing it into a mysql database. It also provides a telnet-like interface for sending commands to the heating and receiving a stream of incoming data when being used with a TCP-to-EMS interface (e.g. NetIO with ethersex running on top)

The ems data is described here: http://ems-gateway.myds.me/dokuwiki/doku.php?id=wiki:ems:telegramme (so far NOT updated to reflect the Bosch changes, see this source code for reference by now).

(examples for debian wheezy)

For building the collector, libboost is required:

apt-get install libboost1.49-all-dev

If MQTT support is enabled, the minimum required boost version is 1.67, so MQTT support can't be enabled on distributions that only ship older boost versions.

If the collector should be built with MySQL support, the MySQL C++ bindings are needed:

apt-get install libmysql++-dev

For using the bundled (demo) web interface, gnuplot is needed:

apt-get install gnuplot

git clone https://github.com/maniac103/ems-collector.git
cd ems-collector/collector

There are several compile options for the collector: MySQL support, support for raw read/write commands and MQTT support. Be sure to review the options given in the Makefile and follow them accordingly. Afterwards, start the build:

make

cp collectord /usr/local/sbin
cd ../tools
cp ems-collector.default /etc/default/ems-collector
cp ems-collector.init /etc/init.d/ems-collector

nano /etc/ems-collector.conf

now, copy and paste this into the editor and customize to meet your environment:

ratelimit = 120
rc-type = rc30
db-user = <user>
db-pass = <password>

close and save. The room controller type can be passed as either rc30 or rc35.

insserv ems-collector
service ems-collector start