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If you're new to PLC (Programmable Logic Controller) programming, understanding the basic instructions is essential. Below is a table outlining common PLC programming instructions along with a brief description of each:
| Instruction | Description |
|---|---|
| LDA | Load Accumulator: Loads a value into the accumulator. |
| ADD | Add: Adds a value to the accumulator. |
| SUB | Subtract: Subtracts a value from the accumulator. |
| AND | Logical AND: Performs a logical AND operation. |
| OR | Logical OR: Performs a logical OR operation. |
| OUT | Output: Sends a value to an output device. |
| IN | Input: Reads a value from an input device. |
| JMP | Jump: Changes the program flow to a specified address. |
| JZ | Jump if Zero: Jumps to a specified address if the accumulator is zero. |
| JNZ | Jump if Not Zero: Jumps to a specified address if the accumulator is not zero. |
| CMP | Compare: Compares two values. |
| HLT | Halt: Stops the program execution. |
Remember, this is just a basic overview of common PLC programming instructions. Depending on the specific PLC model and application, there may be additional instructions available. It's essential to consult the PLC's programming manual and understand the requirements of your specific application.
