Visual programming for not programmers

The storage register (Holding Registr) in the slave polled by the master controller

The variable (Tag) in a memory region Holding Registors external slave polled by the wizard on the controller. This variable is available for read and write. Can be used in a project an unlimited number of times as a normal variable. Also in the editor block, you can specify that the input "En" (write enable). In this case, the write to the variable will only occur on the rising edge of a pulse on this input