Raspberry Setup APC UPS

What is this?
Raspberry Pi OS (Raspbian) install apcupsd Installation guide

What is apcupsd?
apcupsd is a open source UPS mangement and controlling software, it allows the computer to interact with APC UPSes.

Install apcupsd

First, install apcupsd utility, and the dynamic web page monitor.

sudo apt-get -y install apcupsd apcupsd-cgi

Then backup the configuration file.

sudo cp /etc/apcupsd/apcupsd.conf /etc/apcupsd/apcupsd.orig
sudo cd /etc/apcupsd/

Using vim editor to editing the configuration file.

sudo vim apcupsd.conf

If you are using APC BN650M1 series, and connect to raspberry by USB cable, the configuration file will be like this:

## apcupsd.conf v1.1 ##
UPSNAME BN650M1-TW

# UPSCABLE <cable>
UPSCABLE usb

# UPSTYPE
UPSTYPE usb
DEVICE

# POLLTIME <int>
#POLLTIME 60

# LOCKFILE <path to lockfile>
LOCKFILE /var/lock

# SCRIPTDIR <path to script directory>
SCRIPTDIR /etc/apcupsd

# PWRFAILDIR <path to powerfail directory>
PWRFAILDIR /etc/apcupsd

# NOLOGINDIR <path to nologin directory>
NOLOGINDIR /etc

# During power failures
ONBATTERYDELAY 6
BATTERYLEVEL 15

MINUTES 10
TIMEOUT 0

ANNOY 60
ANNOYDELAY 60

# NOLOGON <string> [ disable | timeout | percent | minutes | always ]
NOLOGON disable
# KILLDELAY <seconds>  0 disables
KILLDELAY 0

# Network Information Server
# NETSERVER [ on | off ] on enables, off disables the network
NETSERVER on

# NISIP <dotted notation ip address>
NISIP 0.0.0.0

# NISPORT <port> IANA
NISPORT 3551

EVENTSFILE /var/log/apcupsd.events
EVENTSFILEMAX 10

# Configuration statements used if sharing
# UPSCLASS
UPSCLASS standalone

# UPSMODE
UPSMODE disable

After saving the configuration file, start (or restart) apcupsd service.

sudo service apcupsd start

Running commond, if everything goes right, you will saw the UPS status.

apcaccess

Install Apache

If you want to monitoring your UPS online (via LAN network), please follow the instructions below.

Install Apache 2.4.

sudo apt-get -y install apache2

Then backup the configuration file.

sudo cp /etc/apache2/apache2.conf /etc/apache2/apache2.orig
sudo cp /etc/apache2/sites-available/000-default.conf /etc/apache2/sites-available/000-default.orig

Using vim editor to editing the website configuration file.

sudo cd /etc/apache2/conf-available/
sudo touch apcupsd-cgi.conf
sudo vim apcupsd-cgi.conf

The configuration file section at apcupsd-cgi.conf will be like this:

# apcupsd-cgi
ScriptAlias /apcupsd/ /usr/lib/cgi-bin/apcupsd/
<Directory "/usr/lib/cgi-bin/apcupsd">
	DirectoryIndex multimon.cgi
	Options +FollowSymLinks +ExecCGI
	AddHandler cgi-script .cgi
	DirectoryIndex upsstats.cgi
	Require all granted
</Directory>

Enable the CGI module and CGI config

sudo a2enconf apcupsd-cgi
sudo a2enmod cgi

After saving the configuration file, running configtest to check syntax errors, if everything goes right, you will saw Syntax OK

pi@raspberry:/etc/apache2 $ sudo apache2ctl configtest
Syntax OK

If you saw this error, please follow the instructions below.

pi@raspberry:/etc/apache2 $ sudo apache2ctl configtest
apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for ServerName
Syntax OK

Go back to apache configuration file.

sudo cd /etc/apache2/
sudo vim apache2.conf

Add this section

ServerName localhost

After saving the configuration file, start (or restart) apcupsd service.

sudo service apache2 start

sudo service apache2 reload

Now you can check the CGI monitor

http://your.server.address/apcupsd/

Tips

If you have multi-APC UPSes which can broadcasting data, then you can choice multimon function into index as default.

Please modify the section below

DirectoryIndex upsstats.cgi

into

DirectoryIndex multimon.cgi

The multimon.cgi will be like this

You can also modify the apache default index page, let you easier to access different function.

If apache server default folder (/var/www/html) show Permission denied alert, using the command below

sudo chown -R $USER:$USER /var/www