46 Hydro-View User Guide HD0531 Rev 2.0.0
6.3
Digital Inputs / Outputs
The sensors have one digital input and one digital input / output. These may be configured for
a number of different uses.
Figure 28: Digital Inputs / Outputs Screen
I/P 1 Use
- The current use of Input 1 (Touch to change):
Unused
The digital input is ignored.
Average / Hold
Input is used to control the start and stop period for batch averaging.
When the input signal is activated (+24 VDC), the ‘Raw/Filtered’
values (Unscaled and Moisture) start to average (after a delay period
set by the 'Average/Hold Delay' parameter). When the input is then
deactivated (0V), averaging is stopped and the average value is held
constant so that it can be read by the batch controller PLC. When
the input signal is activated once again the average value is reset
and averaging commences. This is the recommended setting to use
in a Batch Averaging application.
Moisture / Temp This allows the user to switch the analogue output between the
normal moisture variable and temperature. This is useful when the
temperature is required whilst still using only one analogue output.
With the input low the analogue output will indicate the appropriate
moisture variable (Unscaled or Moisture %). When the input is
activated the analogue output will indicate the temperature (in
degrees centigrade).
I/P 2 Use
- The current use of Input / Output 2 (Touch to change):
Unused
The digital input is ignored.
Moisture/Temp
This input allows the user to switch the analogue output between the
normal moisture variable and temperature. This is useful when the
temperature is required whilst still using only one analogue output.
With the input low the analogue output will indicate the appropriate
moisture variable (Unscaled or Moisture%). When the input is
activated the analogue output will indicate the temperature (in
degrees centigrade).
Bin Empty
The sensor output is activated to indicate that the probe is in air, and
can be used to indicate a material bin / silo is empty. It is activated
when the signals (Moisture% or Unscaled) drop below the low limit
parameters in the averaging frame. This may be used in a
Continuous Control application. To only use the moisture % value set
the Unscaled low limit to zero.
Data Invalid
The output is activated to indicate that the sensor reading
(Moisture% and/or Unscaled) is outside the valid range set by 'Low
Limit' and 'High Limit' parameters in the averaging frame. This would
typically be used on a conveyor application to signal material too wet
or too dry.
Summary of Contents for HV04
Page 4: ...4 Hydro View User Guide HD0531 Rev 2 0 0 ...
Page 6: ...6 Hydro View User Guide HD0531 Rev 2 0 0 ...
Page 12: ...12 Hydro View User Guide HD0531 Rev 2 0 0 ...
Page 14: ...14 Hydro View User Guide HD0531 Rev 2 0 0 ...
Page 22: ...Mechanical Installation Chapter 2 22 Hydro View User Guide HD0531 Rev 2 0 0 ...
Page 28: ...Electrical Installation Chapter 3 28 Hydro View User Guide HD0531 Rev 2 0 0 ...
Page 78: ...Material Calibration Chapter 6 78 Hydro View User Guide HD0531 Rev 2 0 0 ...
Page 80: ...Default PIN Codes Appendix A 80 Hydro View User Guide HD0531 Rev 2 0 0 ...
Page 82: ...USB Memory Stick file format Appendix B 82 Hydro View User Guide HD0531 Rev 2 0 0 ...
Page 84: ...Quick Start Rules Appendix C 84 Hydro View User Guide HD0531 Rev 2 0 0 ...
Page 86: ...Frequently Asked Questions Appendix D 86 Hydro View User Guide HD0531 Rev 2 0 0 ...
Page 92: ...Document Cross Reference Appendix G 92 Hydro View User Guide HD0531 Rev 2 0 0 ...
