Beckhoff TwinCAT 2 TX1200, Manual

Page: 19 / 80

Integration into TwinCAT
TX1200 19 Version: 1.1
Next, generate the following global variables:
VAR_GLOBAL
bOpen AT %I* : BOOL;
bClose AT %I* : BOOL;
arrKL6771_IN AT %I* : ARRAY[0..11] OF BYTE;
arrKL6771_OUT AT %Q* : ARRAY[0..11] OF BYTE;
stDataKL6771 : DataKL6771;
END_VAR
bOpen: input variable for the Open button.
bClose: input variable for the Close button.
arrKL6771_IN: input variable for the MP-Bus terminal.
arrKL6771_OUT: output variable for the MP-Bus terminal.
stDataKL6771: required for communication with MP-Bus (see DataKL6771 [
}
72] ).
All function blocks with MP-Bus must be executed in one task.
Therefore, create a MAIN program (CFC) in which the KL6771() [
}
25] and MP_DamperLinearActuator()
[
}
30] function blocks are called. Make sure to link the communication block with arrKL6771_IN ,
arrKL6771_OUT and stDataKL6771 .
The input SetPoint is set depending on the selected function. Link the global variables bOpen and bClose
with an auxiliary variable.