UNSPSC 32151701: Control network linking device

UNSPSC 32151701 Control network linking device is a Commodity code that encompasses programmable logic controllers (PLCs), supervisory control and data acquisition (SCADA) systems, and associated network integration equipment that state and local governments procure to modernize and replace aging control systems at water treatment plants, energy facilities, and other critical infrastructure. Recent solicitations show state and local buyers acquiring PLC replacements (Modicon M580 processors, Allen-Bradley ControlLogix systems, Schneider Electric Unity Pro controllers), SCADA HMI system upgrades (AVEVA Wonderware, Schneider Electric EcoStruxure), network architecture conversions (ControlNet to Ethernet/IP), operator interface terminals, and comprehensive integration services including engineering, programming, Factory and Site Acceptance Testing, and operator training. Issuing bodies include municipal water districts, city water departments, city energy authorities, and county facilities management offices.

The code shows significant recent activity across the Southeast and Southwest. The City of Atlanta Department of Watershed Management has posted two parallel competitive procurements for SCADA improvements at the Chattahoochee and Hemphill Water Treatment Plants (pre-advertisement notices May 8, 2026, with IFB responses due October 14, 2026), both requiring five years of comparable integration experience and ControlLogix PLC expertise. West Basin Municipal Water District (California) is seeking proposals for Torrance Refinery Water Recycling Plant PLC replacements under RFP RFPDS0149 (due November 5, 2026), with mandatory pre-proposal conference October 7, with scope including Modicon M580 processor deployment, PLC programming, HMI development, and Factory and Site Acceptance Testing. The City of Santa Fe on behalf of Buckman Direct Diversion posted RFP FY26RFP036 for PLC replacement and SCADA modifications across four treatment sites using Schneider Electric Unity Pro XL software (proposal deadline January 9, 2026 per source, though the date appears inconsistent). The City of Austin Purchasing Office has solicited digital valve positioners (IFQ 1100 AGM1029, due October 20, 2026) and CEMS NOx/O2 equipment (IFQ 1100 CPG1079, due August 4, 2026) with initial SBE and M/WBE set-asides. Geographic activity is concentrated in California, Georgia, Texas, and New Mexico; set-asides or preferences for SBE, MBE, WBE, and local/veteran-owned enterprises appear in multiple recent solicitations.