PLCs (Programmable Logic Controller) and Safety PLCs are digital computers used for automation of electromechanical processes.
Programmable Logic Controllers:
- Control most any kind of machinery, process controls, assembly lines, test equipment, lighting, amusement park rides, etc.
- Designed to read multiple inputs and control multiple output arrangements.
- Designed to operate around extended temperature ranges, have immunity to electrical noise, and have resistance to vibration and impact.
- Today, known processing speeds are as fast as 9.5ns. A nanosecond (ns) is one billionth of a second.
- Operates in real time, output results must be produced in response to input conditions within a fixed time.
- Programmed in a variety of ways using Ladder Diagram (LD), Structured Text (ST), Sequential Function Chart (SFC), Function Block (FB), Instruction List (IL), PLC open motion control function blocks, Visual Basic, C, C++, and IEE 61131 programming languages.
- Programs for control machine operation are stored in battery-backed or non-volatile memory and can be OEM protected.
- Interconnection between HMI (Human to Machine Interface), OIT (Operator Interface Terminal) has become one the most interactive parts of the PLC family, therefore giving the operator a means of changing product, reading error messages, operating the machine in manual or automatic modes, viewing an operation through a camera, seeing the operations status, or almost anything you can think of.
- What type of inputs and outputs are required and how many?
- Are there any requirements for remote I/O, if so how many I/O and at what distance?
- Are there any Servos, VFDs or Robots and how many?
- Is there a HMI requirement, if so what size of HMI and how many?
- Is there a need for Networking, if so what type of networking and how many connections?
If you have a automated process, machine or lighting requirement, Cates has a PLC solution!
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