(1) Function: Motor M requires two-way control. It is necessary to press SB1 and SB3 at the same time to start the motor at two different locations. Pressing SB2 and SB4 can stop the motor. (2) I/O allocation
Input symbol comment output symbol comment I0.0In_Moto1_A_StartSB1Q4.0Out_Moto1_RunKM1I0.1In_Moto1_A_StopSB2I0.2In_Moto1_B_StartSB3I0.3In_Moto1_B_StopSB4 (3) plc wiring diagram
(4) Programming 
A Half Mirror is an optical window with semi-transparent mirrored coating to break a beam into two or more separate beams. Half Mirrors will reflect a portion of the incident energy, absorb a relatively small portion, and transmit the remaining energy. Beamsplitter plates have very neutral color characteristics and are often referred to as beam-splitters plate.A half-silvered mirror used in photography is often called a Beamsplitter Plate.
Half Mirrors,50/50 Half Mirror Glass,1:1 Mirrors,1:1 Beamsplitter Mirrors
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