Automation PLCPermissive circuits in PLCAreejMarch 10, 2018 by AreejMarch 10, 20180528 Introduction A practical application of switching and relay logic is in control systems where several process conditions must be met before a computer is allowed...
Instrumentation PLCFAIL SAFE LADDER LOGIC PROGRAMAreejFebruary 19, 2018 by AreejFebruary 19, 20180441 Fail-safe design In control systems, safety is (or at least should be) an important design priority. If there are multiple ways in which a digital...