No. Most PLC courses are open to applicants with a basic Leaving Certificate. Applicants to some courses may be asked to meet minimum entry requirements of specific Leaving Certificate results.
PLC Colleges of further education usually conduct interviews for all courses, and applicants are given an opportunity to talk about themselves and to say why the course interests them.
Francis O' Toole Author - Careers Ireland 
No! PLC Courses is ideal for anyone wishing to expand their knowledge and learn about PLC’s as used in industry worldwide. No previous experience is necessary. There are various PLC Courses available in UK.