Discrete Inputs; Wiring The Discrete Inputs; Adjusting The Discrete Input Logic - Siemens HydroRanger 200 HMI Operating Instructions Manual

Discrete inputs

Discrete input logic affects the reaction of the discrete input. Normal state is the
standard operation, with the HydroRanger 200 HMI sensing the material level and
controlling the pumps.

Wiring the discrete inputs

The contacts of the signalling device connected to the discrete inputs may be Normally
Open or Normally Closed.
Example:
Normal state for a backup high level switch is open, and the contacts on the discrete
input are wired as normally open. This logic can also be reversed (Normally Open to
Normally Closed or vice versa).
2.9.2. Discrete Input Logic
Use the

Adjusting the discrete input logic

The default for discrete inputs is Normally Open, which is an Inactive state because no
signal is present on the terminal block connector. It becomes Active only when a signal is
present on the terminal block. To change between Inactive and Active, use
Input Logic
.
A5E36281317
parameters to set the state of each discrete input.
HydroRanger 200 HMI – OPERATING INSTRUCTIONS
2.9.2. Discrete
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