Easy xLogic, User Manual, Page: 113 / 226

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Example Example Example Example
In a heating control system, the supply Tv and return line temperatures Tr are to be
compared, for example with a sensor at AI2.
A control signal is to be triggered (for example "heater On") when the difference between the
supply and return line temperatures is greater than 15 °C. The control signal is reset when
the difference is less than 5 °C.
The process variable of the temperature is to be shown in parameter assignment mode.
The thermocouples available have the following technical data: -30 to +70 °C, 0 to 10 VDC.
Configuration Configuration Configuration Configuration (example): (example): (example): (example):
Reducing
Reducing Reducing
Reducing the
the the
the input
input input
input response
response response
response of
of of
of the
the the
the analog
analog analog
analog comparator
comparator comparator
comparator
You can selectively delay the output of an analog comparator by means of the "On-delay"
and "Off-delay" special functions. With on-delay, output Q is only set if the pulse width of the