Source (for SQO and SQI) is the address of the input element or file from which the instruction obtains data for its sequencer file. Store the mask in an element or file if you want to change the mask according to application requirements. Specify a hexadecimal value for a constant mask value. Set (1) mask bits to pass data reset (0) mask bits to prevent the instruction from operating on corresponding destination bits. Its purpose depends on the instruction:ħ Mask (for SQO and SQI) is a hexadecimal code or the address of the mask element or file through which the instruction moves data. The same applies when using multiple instructions in the same rung to double, triple, or further increase the number bits.Ħ To program sequencer instructions, you need to provide the processor with the following information:įile is the indexed address of the sequencer file to or from which the instruction transfers data. Important: Each SQO instruction increments the control structure, so corresponding SQI instructions may miss parts of the source file.Ĥ Entering Parameters: When programming SQI and SQO instructions in pairs, use the same control address, length value, and position value in each instruction. Place SQI instructions in series and SQO instructions in parallel in the same rung for 32-, 48-, 64-, or other bit operations. These instructions operate on multiples of 16 bits at a time. Use the SQL instruction to load data in the sequencer file. Use the sequencer input and output file.ĭescription: Use the SQI and SQO instructions in pairs to respectively monitor and control a sequential operation. Use the sequencer input instruction to detect when a step is complete use the sequencer output instruction to set output conditions for the next step. 2 Sequencer instructions are typically used to control automatic assembly machines that have a consistent and repeatable operation.

Instrucciones rslogix 500