Fixed hardware style hardware generally comes with Three (3) models, as listed below: This SLC 500 hardware style permits limited expansion as this design is especially made for micro and small automation requirements. Fixed style hardware belongs to the Compact type PLCs due to the built-in components. This design comes with a built-in power supply, processor and I/O channels – all installed in one compact assembly. The fixed style hardware was released in the early ‘90s. Generally, the SLC 500 product family must were released in Two (2) designs – Fixed Style and Modular Style hardware. It may also be operated as a stand-alone device for the purpose of testing, familiarization and learning.īefore selecting an SLC 500 Processor, familiarization with the platform and the hardware styles must be identified. Processors not only execute the downloaded user program but also manages communication between devices. Central Processing Units (CPU) or processors are considered the most important and expensive component of a Programmable Logic Controller (PLC) assembly.
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