Addition of two operands using addition instruction in the PLC.

Addition of two operands using additional instruction in the PLC.

Application:-Explain addition instruction in the PLC. Write PLC program for explanation using ladder diagram language.

Components:-Programmable logic controller, 24 VDC power source.

Explanation:-

The addition instruction is used for the addition of two values for any data records. For example, we want two add two weight in the application like weight 1 and weight 2 and we want to show the total weight on the HMI also.

So for that, we have two take two input field in the HMI system and make weight 1 input field and weight 2 input field so a user can enter the value in the input field.

PLC program:-

Write the ladder program to calculate instruction using ladder diagram language. Here for ladder logic, we can use any supported PLC a system like S7-1200, S7-1500 or any other PLC which can support this instruction.

M Memory:-

Weight 1:-MW10

Weight 2:-MW12

Total value:-MW14

PLC program Explanation:-

In-network 1 we have taken additional instruction for the addition of two weights. Weight 1(MW10) will be entered from the HMI and weight 2 (MW12) will be entered from the HMI. Instruction is executed and generates output in the MW 14 word.

You can use addition instruction value for any application in which you can show the addition of two values or more than two values.