The S7-400H consists of two redundant configuration subsystems synchronized via fiber optic cables. These two subsystems...
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Before performing analog calculations and programming, we must first understand some concepts and calculation bases, na...
This article will introduce three communication methods: MPI, TCP/TP and ISO protocol communication. MPI protocol and TC...
The communication port of the EVE Automation UN200 CPU can be set to free port mode. When free port mode is selected, t...
Software design is the core of PLC control system design. To design effective PLC application software, a thorough unde...