The Arc Sine instruction is a ladder logic rung output instruction that takes the arc sine of the Source value and places the result in the Destination tag. The instruction is enabled when the preceding logic is true and disabled otherwise. The values can be constants, tags or any combination. The Source must be between -1 and … Read more
The Arc Cosine instruction is a ladder logic rung output instruction that takes the arc cosine of the Source value and places the result in the Destination tag. The instruction is enabled when the preceding logic is true and disabled otherwise. The values can be constants, tags or any combination. The Source must be between -1 and … Read more
The following is a growing list of ladder logic PLC programming instruction definitions and examples. Each instruction is hyper-linked to a brief description. The intent is to supplement the help files already provided with Studio5000 programming and configuration software. While the help files do a good job of defining the instructions, seeing believes. The following … Read more
The Bitwise AND instruction is a ladder logic rung output instruction that performs an AND operation on Source A and Source B and places the result in the Destination tag. The instruction is enabled when the preceding logic is true and disabled otherwise. The values can be constants, tags or any combination. And truth table … Read more
The AFI is a ladder logic rung instruction that sets the rung output to false. Use this instruction to temporarily make the output of the rung false, great for troubleshooting. Note: See the NOP and MCR for related instructions.
The Add instruction is a ladder logic rung output instruction that adds two values. The instruction is enabled when the preceding logic is true and disabled otherwise. Source A is added to Source B and placed in the Destination tag. The values can be constants, tags or any combination. List of possible arguments SOURCE A and SOURCE … Read more
The Absolute Value instruction is a ladder logic rung output instruction that takes the absolute value of the Source and places the result in the Destination tag. The instruction is enabled when the preceding logic is true and disabled otherwise. The values can be constants, tags or any combination. List of possible arguments SOURCE and DESTINATION can be any combination … Read more