smallPower 6.4.1

source codes and config Files to monitor small power data

Smallpower 6.4

Description

The whole program dumps data from Beckhoff(using a PLC_configuration file .xlsx) and calculates real-time indicators(dumps them as well).

• the dumper should be started with :

./bin/start_dumper_smallpower.sh

Look at the status or kill the dumper with :

./bin/status_dumper_smallpower.sh
./bin/kill_dumper_smallpower.sh

• possible to work with the beckhoff simulator:

./bin/start_simulator_smallpower.sh

pre-requisites

postgresSQL

• postgressql server should be active running on port 5432(user:postgres,password:sylfenbdd) containing a jules database with a realtimedata table(default settings).
• do not forget to cofnigure pg_hba.conf correctly.
• you change password of user postgres with :

alter user <postgres> password '<newpassword>';

Connection to the beckhoff opcua server

• in order to be able to connect to the beckhoff for the dumping and real-time you should do the following or you have already take an existing certif/key pair:

openssl req -x509 -newkey rsa:4096 -keyout <key.pem> -out <cert.pem> -days 7200 -nodes

data acquisition

• it uses the python package dorianUtils==6.4. Please install it with pip:

pip install dorianUtils==6.4

• data are dumped a in the folder ~/smallPower_daily by default.
• to change the default settings, create a file parameters_conf.py in the smallpower folder which will overwrite the default parameters from smallpower/conf.py. In that case you should install the project using:

pip install -e .

• a plc configuration file : ALPHA - BD Instrum XL_Vxxx.xlsm should be in the confFiles folder. The new version is to be put in the same folder if there are any updates.
• conf.py has a function generate_conf_small_power to regenerate the configuration and load the new configuration file. It builds also the tag_color_code and the list of indicators.