Page 46 HydroRanger 200 – INSTRUCTION MANUAL 7ML19985FC03
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Discrete Inputs
Discrete Inputs
Wiring the Discrete Inputs
Normal state is standard operation, with the HydroRanger 200 sensing the material level
and controlling the pumps.
The discrete input contacts are either normally-open or normally-closed when the
system state is normal.
Example:
Normal state for a backup high level switch is open, and the contacts on the discrete
input are wired as normally-open.
See
Discrete Inputs
on page 20 for complete details on wiring the discrete inputs. To
override a level using a discrete input, see
Backup Level Override
on page 45.
Programming the Discrete Input Logic
The P270 series of parameters permits control over the discrete input.
The current value of the discrete input is reported in P275:
DI State P270 Setting
Normally Open
Normally Closed
P270 = 2
P270 = 3
P275 Setting HydroRanger 200 State
0
1
Normal State
Exception State