UNSPSC 32151709: Programmable logic controller Input output doors

Protective doors affixed to the front of panel mounted PLC's to cover the cabling to the module. These are typically hinged and affixed to the module.

UNSPSC 32151709 Programmable logic controller Input output doors is a Commodity code that encompasses PLC I/O modules, terminal blocks, and control interface hardware deployed in industrial automation systems modernization. State and local governments procure under this code primarily for water treatment plant SCADA upgrades, municipal infrastructure control system replacements, and related distributed automation installations. Issuing bodies include municipal water departments, county water authorities, transit agencies, and special-purpose utility districts. Recent solicitations show the code is actively used for mid-to-large-scale system integration projects involving PLC hardware replacement, network architecture upgrades, and operator interface installation in operating treatment facilities. The work typically requires experienced integrators capable of managing Factory Acceptance Testing, site commissioning, personnel training, and continuity of operations during transition phases.

The code sees the most recent activity in Georgia, California, and Florida, with additional procurement activity in New Mexico. Representative recent opportunities include the City of Atlanta Department of Watershed Management's RFP for SCADA improvements at the Hemphill Water Treatment Plant (Posted May 8, 2026, due May 29, 2026), which solicits replacement of General Electric iFix systems with Schneider Electric AVEVA Wonderware HMI systems, installation of new ControlLogix controllers, and PanelView Plus 7 operator interface terminals across 16 filter consoles over a 360-day implementation period; and the City of Santa Fe's RFP (FY26RFP036, posted February 9, 2026, due January 9, 2026) for replacement of four critical PLCs (Pall Membrane, Ozone, Advanced Treatment Facility, and Granulated Activated Carbon) using Schneider Electric Unity Pro XL software and M580 PLC hardware. Both solicitations require minimum five years of comparable integration experience, specialized PLC programming expertise, and demonstrated past performance on similar water or wastewater treatment control system upgrades. Vendors must meet rigorous staffing and credentialing requirements, including project managers with industrial controls leadership experience and lead programmers certified in specific PLC platforms.