* Connection of counter and scale, Pin assignment
DISPLAY COUNTER
  1 PIN: +(+5V)  
  2 PIN: A  
  3 PIN: B  
  4 PIN: Z  
  5 PIN: - (-0V)  
  6 PIN: SHIELD  
SCALE
  1 PIN: +(+5V)  
  2 PIN: A  
  3 PIN: B  
  4 PIN: Z  
  5 PIN: - (-0V)  
  6 PIN: SHIELD  
SCALE
  1 RED: +(+5V)
  2 YELLOW: A
  3 WHITE: B
  4 GREEN: Z
  5 BLACK: - (-0V)
  6 BLUE: SHIELD
 
FOR EDM
DISPLAY COUNTER
  2 (YELLOW): A
  3 (RED): B
  4 (WHITE): COM
SCALE
  2 (WHITE): A
  3 (GREEN): B
  4 (BLACK): COM