Status of digital inputs / outputs

The following parameters are available in the parameter menu as display parameters:

• P039 Digital inputs of basic unit
• P048 Digital inputs option
• P059 Digital outputs

The status is displayed as binary. Every digital input or output has two segments vertically on top of one another of the 7-segment display assigned to it. The upper segment lights up when the digital input or output is set, and the lower segment lights up when the digital input or output is not set. The two 7-segment displays on the right indicate whether P039 (di = digital inputs basic unit), P048 (dI = digital inputs option), or P059 (do = digital outputs) are output.

If no FIO21B with digital inputs is available, the display will show dl - - -.