Blog

There are 255 16-bit words in file B3.

In the following SQL instruction block, which parameter holds the data table?

In the following SQO instruction block, which parameter holds the address of the output port?

The process of transferring data out of the stack is called ______________________________.

The copy file (COP) and fill file (FLL) instructions are used to store blocks of data in a PLC file.

The FIFO unload (FFU) instruction transfers data words or registers onto the stack.

In the following drum sequencer, the bit pattern for Step 5 is ____.

The process of placing data onto the stack is referred to as ______________________________.

The ______________________________ instruction reads data from a module and then masks the data prior to transferring it to an address.

Which of the following is not one of the four instructions for the LIFO and FIFO operations in an Allen-Bradley SLC 500 PLC?