Safety is a basic human need. The proliferation of modern PLC (programmable logic controller) based machine controls has resulted in new safety standards including ISO 13849 and IEC 61508. Sentinel’s expertise in industrial safety, automation, controls, formal risk assessment, and industry standards helps our clients achieve a “due diligence” level of regulatory compliance. A proactive approach to machine control safety can also optimize production. Providing controlled access to ‘muting zones’ for tasks such as adjustment, cleaning, and replenishment allow the adjoining processes to remain in a productive state.