UNSPSC 32151900: Automation control connectivity devices

UNSPSC 32151900 Automation control connectivity devices, a Class code, encompasses programmable logic controllers (PLCs), supervisory control and data acquisition (SCADA) system modernization, digital valve positioners, and related industrial control hardware and integration services that state and local governments procure to upgrade aging process-control infrastructure at water treatment plants, wastewater facilities, and building automation systems. Recent solicitations reveal a mix of equipment purchases (individual valve positioners, specific PLC models) and comprehensive system-integration contracts requiring design, programming, Factory Acceptance Testing, on-site commissioning, and operator training. Issuing bodies include municipal water districts, city departments of watershed management and public works, independent school districts, and county governments. Water treatment and recycling plants dominate the recent activity, with school districts and municipalities pursuing building automation upgrades at secondary facilities.

Geographic concentration centers on California, Georgia, and Texas, with additional activity in Connecticut, Florida, Massachusetts, and New Mexico. Representative recent opportunities include West Basin Municipal Water District (Torrance, California) issuing RFP RFPDS0149 for Programmable Logic Controller Replacements at the Torrance Refinery Water Recycling Plant, due November 5, 2026, requiring Modicon M580 processors, HMI screen development, SCADA system recommissioning, and Schneider Electric EcoStruxure programming; the City of Atlanta issuing two separate competitive RFPs (due October 14, 2026) for SCADA improvements at the Chattahoochee and Hemphill Water Treatment Plants, both involving replacement of General Electric iFix systems with AVEVA platforms, ControlLogix PLC upgrades, and Ethernet/IP network conversion; the City of Santa Fe soliciting PLC replacement and SCADA modifications for the Buckman Direct Diversion water system (RFP FY26RFP036, due January 9, 2026) with local preference incentives up to 6 percent; and Cherokee County School District (Georgia) issuing RFP BAU2027RFP for Building Automation System replacements at two secondary schools, due October 29, 2026. The City of Austin has posted multiple IFQs for discrete components—digital valve positioners and continuous emissions monitoring systems—targeting certified small and minority-owned vendors initially before broader posting.