Smart current metering with Industrial PLC based on Arduino

This project is designed to measure the current consumption in a company using a current sensor. Through a database in the Ethernet PLC itself, it is possible to know the consumption statistics for medium and long-term tracing and even stop the current in case they exceed the allowed limit.

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2. C A S E S T U D Y F a b r i c a d e l P o n t 1 - 1 1 · ( R e c i n t e i n d u s t r i a l d e l P o n t V e l l ) · 0 8 2 7 2 , S a n t F r u i t ó s d e B a g e s ( B a r c e l o n a ) · S p a i n i n f o @ i n d u s t r i a l s h i e l d s . c o m • w w w . i n d u s t r i a l s h i e l d s . c o m F I N A L S O L U T I O N ( H A R D W A R E ) T h e Y H D C c u r r e n t s e n s o r S C T 0 1 0 T - D w i l l b e c o n n e c t e d t o t h e E t h e r n e t P L C o n a n a n a l o g i n p u t .   T h e d a t a i s r e c e i v e d p e r i o d i c a l l y a n d i t w i l l b e s e n t t o t h e P a n e l P C v i a e t h e r n e t u s i n g t h e M Q T T p r o t o c o l f o r s e n d i n g a n d r e c e i v i n g d a t a . O n c e t h e d a t a a r r i v e s a t t h e P a n e l P C , t h e s e a r e s t o r e d i n t h e S D m e m o r y . T h e d a t a b a s e l o c a t e d i n s i d e t h e P a n e l P C w i l l c o l l e c t t h e d a t a r e c e i v e d f r o m t h e P L C , a n d u s i n g t h e N o d e - N e t w o r k t o o l t o m o n i t o r a l l t h e d a t a , i n g r a p h i c f o r m a t , t o o b s e r v e t h e r e s u l t s i n t h e m e d i u m a n d l o n g t e r m . T h e c l i e n t a l s o w a n t e d t o r e m o t e l y a c c e s s t h e i n f o r m a t i o n , f o r t h i s r e a s o n t h e s y s t e m h a s b e e n c o n n e c t e d t o a V P N s o t h a t a w e b c l i e n t c a n a c c e s s t h e s e r v e r r e m o t e l y a s l o n g a s i t h a s p e r m i s s i o n s . I f a n a n o m a l y i s d e t e c t e d i n t h e s y s t e m , t h e P L C a u t o m a t i c a l l y c u t s t h e e l e c t r i c a l c u r r e n t w i t h a r e l a y o u t p u t .  

1. C A S E S T U D Y I N D U S T R I A L S H I E L D S S M A R T C U R R E N T M E T E R I N G   T h i s p r o j e c t i s d e s i g n e d t o m e a s u r e t h e c u r r e n t c o n s u m p t i o n i n a c o m p a n y u s i n g a c u r r e n t s e n s o r . T h r o u g h a d a t a b a s e i n t h e E t h e r n e t P L C i t s e l f , i t i s p o s s i b l e t o k n o w t h e c o n s u m p t i o n s t a t i s t i c s f o r m e d i u m a n d l o n g - t e r m t r a c i n g a n d e v e n s t o p t h e c u r r e n t i n c a s e t h e y e x c e e d t h e a l l o w e d l i m i t . T h e i n f o r m a t i o n c a n b e a c c e s s e d r e m o t e l y , t h r o u g h a V P N c o n n e c t e d t o o u r M Q T T s e r v e r . I n t h e c o m p a n y , a P a n e l P C b a s e d o n R a s p b e r r y P i 3 w i l l m o n i t o r t h e r e s u l t s i n g r a p h i c f o r m .   S U M M A R Y T h e c u r r e n t s e n s o r i s l o c a t e d a t a s t r a t e g i c p o i n t o f c u r r e n t f l o w . T h e d a t a i s p r o c e s s e d i n t h e P L C b a s e d o n A r d u i n o a n d t h e s e a r e s e n t t o t h e P a n e l P C , w h e r e t h e d a t a b a s e i s l o c a t e d . I n t h e P a n e l P C t h e r e i s a l s o a b r o k e r s e r v e r ( M Q T T ) t h a t i s r e s p o n s i b l e f o r r e c e i v i n g a n d s e n d i n g d a t a b e t w e e n t h e P L C a n d t h e P a n e l P C . T o m o n i t o r t h e d a t a , N o d e - R e d h a s b e e n u s e d . O B J E C T I V E T h e m a i n p o i n t s t o s o l v e a r e t h e f o l l o w i n g : A c c u r a c y i n t h e m e a s u r e m e n t . I n t h e t a k i n g o f m e a s u r e m e n t n o l o n g e r i n t e r v e n e p e o p l e , r e a s o n w h y i t i s e f f e c t i v e a g a i n s t t h e e r r o r s o f r e a d i n g .   M e a s u r e m e n t a n d c o n t r o l o f c u t t i n g a n d p r e - c u t t i n g o f e l e c t r i c a l e n e r g y f r o m t h e c o n t r o l c e n t e r i n a f u l l y a u t o m a t i c w a y . I t o f f e r s d a t a s t o r a g e , e v e n t l o g , l a c k o f v o l t a g e a n d c u r r e n t . W i t h t h i s f e a t u r e i t w o u l d n o t b e n e c e s s a r y f o r t h e f i n a l c o n s u m e r t o n o t i f y o r c o m p l a i n d u e t o l a c k o f e n e r g y s i n c e t h e t e a m i m m e d i a t e l y w a r n s t h e c e n t e r .

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