This manual covers general information on the basics to the application of the Mitsubishi PLC MELSEC iQ-F Series. The contents include explanations on the PLC, and explanations on the instructions with examples. The PLC is explained based on the FX5U.
A Programmable Controller (PLC) is also referred to as a Programmable Controller or Sequence Controller. A PLC is defined as “an electronic device which controls many types of systems
through its I/O ports and incorporates a memory to store programmable instructions.”
The PLC is activated by command inputs such as inputs from pushbutton switches, selector switches and digital switches located at the operating panel, and by sensor inputs, such as inputs from limit switches, proximity switches and photoelectric switches, which detect the status of the system, in order to control drive loads such as solenoid valves, motors and electromagnetic clutches, and indication loads such as pilot lamps and digital indicators.
The behaviors of output signals corresponding to the input signals are determined by the contents of programs provided to the PLC.
GX Works3 software provides an efficient and easy way to create and editsequence programs for PLCs.