What are you looking for?

Logical I/O Line State

Logical I/O line state

The (logical) state of an I/O line is the logical state of an electrical signal of the I/O control block:

  • For input-capable I/O lines: the LineInput signal: a point in the input path of the I/O control block that is located after the Input Inverter.
  • For output-only I/O lines: the LineOutput signal, a point in the output path of the I/O control block that is located before the Output Inverter.

Getting the state of a single I/O line

  • Step1: Select an I/O line by assigning the appropriate value to the LineSelector feature
  • Step2: Obtain directly the line status by getting the value of the LineStatus feature

Getting the state of all I/O lines in a single operation

Get the value of the LineStatusAll feature.

Each bit of the integer corresponds to an I/O line. A bit at one corresponds to a line logical state being high.