PLCscanners
PLCscanners are software tools or hardware devices designed to enumerate and assess Programmable Logic Controllers (PLCs) within industrial networks. They are used by asset owners and security professionals to build inventories, verify configurations, and evaluate exposure of control systems.
Functionality typically includes network discovery on defined ranges, protocol-aware fingerprinting to identify vendor and model, and
Operation can be active, sending crafted requests to PLC services, or passive, monitoring traffic without directly
Applications include asset management, baseline configuration audits, vulnerability assessments, and incident response planning. Use requires authorization
Limitations include incomplete protocol coverage, variability in PLC configurations, potential disruption of control networks, and protections