| Input IN |
REAL (input signal) |
| K |
REAL (multiplier) |
| RUN |
BOOL (enable input) |
| RST |
BOOL (Reset input) |
| OUT_MIN |
REAL (lower output limit) |
| OUT_MAX |
REAL (upper output limit) |
| Output OUT_MAX |
REAL (upper output limit) |
| LIM |
BOOL (TRUE if the output is at a limit) |
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FT_INT2 is an integrator module which calculates internal with double-precision and ensures a resolution of 14 decimal places. This makes it suitable to use FT_INT2 unlike FT_INT, for power meters and similar applications. |
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For example, an input signal of 0.0001 results in a sampling time of 1 millisecond and an output value of 100000 a value of 0.0001 * 0.001 seconds = 0.000001. To be added to the baseline of 100000, which results inevitably reflect the value of 100000 because the resolution of the data type Real can only collect up to 8. FT_INT2 solves this problem by calculating internal with double-precision (14 decimal places) and adds even the smallest input values so that no information is lost. |
