By selecting edit/conversion table or by clicking the icon in the task bar, you can enter a list of output values with correspond to different input values.
In this way you can configure lineair, logarithmic, reverse, … curves. This conversion can be used in analogue logic to set an I/O to a value depending on the value of another I/O.
A simple example is a “heating curve”. Depending on the outside temperature another temperature in one zone can be set.
When choosing ‘Heating curve’ next screen will appear:
“TH input” is the thermostat I/O that measures the outdoor temperature. The desired temperature of “TH I/O” will be controlled.
In the example above the offset of TH Outdoor was set to -20°C.
Temperature ranges from -20°C to +43.5°C.
When colder than -10°C the desired water temperature will be 60°C. This will lineair decrease to 50°C for temperatures up to 10°C. A minimum temperature of 50°C will be set when warmer.
When both thermostat I/O’s are set, an analogue logic was created:
An installer can change this logical expression via the “Professional service mode”
Conversion tables in ‘advanced’ mode can completely be set as desired.
Every input value (0 - 255) results in another I/O value (0 - 255)
Every intermediate I/O value will be divided linearly.
The number of divisions can also be set. Up to 32 divisions will be made visible graphically.
Next example shows a logarithmic conversion:
An input value of 20% will result in an I/O value of 39.2%
An input value of 40% will result in an I/O value of 62.7%
…
Remark: When a value is empty in the beginning or at the end of the table, this will result in a value of zero. The next example will give values between 39.2% and 78.4% if the input value is between 20% and 80%. Otherwise it will result in 0%!
