//INTEGRAS/ELS/PAGINATION/ELSEVIER UK/PLC/3B2/FINALS-7-6-04/0750656794-CH027.3D – 287 – [282–292/11]
19.6.2004 9:20PM
27.5 Principle of operation ^ ROTARY1
1. Line 0
(a) M8002 closes for one scan period, when the PLC is switched to Run.
(b) In parallel with M8002 is a manual reset X7.
(c) Hence when either the PLC is switched to Run or X7 is operated, data register
D0 which is being used to totalise the number of acceptable products and data
register D1 which is being used to totalise the number of rejected products,
will be reset.
2. Line 8 Station 1
(a) At position 1, a sensor X0 will give an output signal, when a jar enters the index
table.
(b) This will cause the Y0 light comes ON to indicate that a jar has been inserted into
the rotary index table, ...