Programming example for real PLCs.

Includes problem statement and solutions for three automation systems:

-EasyPLC (Nirtec)

-TIA PORTAL v.15 (Siemens)

-RSLogix 5000 (Rockwell)

The objective is to pick up the boxes from the input line and place it in the requested output line (right or left). 

Operating instructions for the proposed system:

The cardboard boxes will come from the input line, once the inductive switch will detect the part (I.0), the PLC must to manage the Pick & Place arm in order to take the cardboard and place it in the line requested.

The information about what line the arm must to download, comes from the line, and uses two PLC inputs, if I.3 is on, it means the line right is requesting boxes, then the arm must to download there, if I.4 is on, the arm must to download in line Left.

The Pick & Place arms works as follows:

-Use the PLC Digital Output O.3 to rotate the axis to Left line

-Digital Output O.4 to rotate the axis to Right line 

– D. Out O.5 to activate the suction system to take the boxes

-The Digital Input I.1 is activated when a box is detected in the suction system (use it to know the part is on the suction system)

-Dig. Inp I.2 is on during the arm rotation axis is moving, when is of the arm rotation is off.

The Arm uses two analog inputs and two analog outputs:

– Analog Out 0 -> sets the arm Horizontal position

– Analog Out 1 -> sets the arm Vertical position

– Analog Inp 0 -> informs to the PLC about the current arm Horizontal position

– Analog Inp 1 -> informs to the PLC about the current arm Vertical position

(This exercise is part of the Tutorial Manager package where you can find 20 completed and solved automation exercises)