Connecting the previous article about the explain PLC (Programmable Logic Controller), the PLC not only has advantages. As a result of the creation of humans, of course, the PLC still has deficiency and weaknesses in every generation do corrections and improvements. PLC on its role as a control system has a quite fundamental weakness and still continued to be pressured in order to obtain results that approached perfection and hope that is, either by the vendor or by the user, of course. As for the shortcomings of the PLC can be explained as follows:
- Still New Technology
Changing the old system that uses relay into computer concept PLC is still considered new for some people. Surely this makes a great challenge for PLC vendors to improve recognition of the PLC to the general public and society technologies (in particular). Meanwhile, PLC is widely used at industrial level only, not many penetrated the wider world is people. Although not overly affect the industrial market, with a PLC system know people will be able to have its own interest to hone science, especially in the field of control with PLC and make their implementation in everyday life. - Application to Application Programs recent PLC Static (Fixed)
PLC applications can include multiple functions at once. On the other hand, some applications are applications with a single function. Rarely do change even not at all or static. It makes use of PLC in applications with a single function is considered ineffective even be able to spend a huge cost alias wasteful. Therefore, the use of PLC in small applicationsare not recommended by experts control system. - Operation with the arrangement Static (Fixed)
Performance PLC are not optimal and cost effective to waste even if the circuit in an operation not performed a thorough change. The process to be slow and makes the compromised system, affect the production and output.
Besides the deficiency of the PLC, the PLC was not free from advantages. Any advantages of PLC?
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