S.E.E.R. 2 is a full featured SCADA / Historian / Aggregate Analysis System developed to work as a 'front end' for mod_openopc. Written in pure PHP (HTML 4.01 Transitional), and driven by a web-based user interface for universal deployment.
syphon is an extension for mod_openopc, to monitor telnet devices (serial devices) that sit on Serial -to- Ethernet bridges (such as barcode scanners) and export parsed data to an OPC compliant device (such as a PLC).