From OpenSCADAWiki
Package repositories based on the package manager YUM (RedHat, Fedora, CentOs) — are added by uploading or creating a file /etc/yum.repos.d/openscada.repo with the contents:
[openscada]
name=OpenSCADA
#CentoOs (LTS)
baseurl=http://ftp.oscada.org/OpenSCADA/LTS/CentOs/7
#CentoOs (Work)
#baseurl=http://ftp.oscada.org/OpenSCADA/Work/CentOs/6
#Fedora (Work)
#baseurl=http://ftp.oscada.org/OpenSCADA/Work/Fedora/12
enabled=1
gpgcheck=1
repo_gpgcheck=1
gpgkey=http://ftp.oscada.org/Misc/pkgSignKey
Installing:
yum install openscada-Model.AGLKS