The PLC Control Cabinet forms the central automation and control hub of the SNCR system, providing complete monitoring, control, and safety functions for reagent storage, preparation, distribution, and NOx reduction processes.
The cabinet is equipped with a state-of-the-art Siemens SIMATIC PLC / Safety PLC platform and includes all necessary PLC CPUs, remote I/O interfaces, communication modules, managed industrial Ethernet switches, power supplies, UPS, relays, terminal blocks, and network components. Depending on project requirements, the cabinet may also incorporate safety controllers, redundant architectures, and cybersecurity features.

The PLC Control Cabinet continuously acquires and processes field signals from pumps, process units, storage systems, analyzers, pyrometers, and other instrumentation to execute advanced control algorithms for reagent flow control, injector selection, temperature-based dosing, safety interlocks, alarm management, and process optimization.