Contec CONPROSYS nano CPSN-PCB271-S1-041, Reference Manual, Page: 78 / 155

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Programing with CODESYS
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CPSN-PCB271-S1-041 Reference Manual (Software)
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4. Create a transmission program

Create a Program
1
Double click the [PLC_PRG (PRG)] icon on the device window to open the “ST editor window”.
2
When “ST editor window” appears, write the following source code between VAR and
END_VAR in the “Variable declaration”.
StartFlag : BOOL := TRUE;
State : INT := 0;
Com1Params : ARRAY [1..7] OF COM.PARAMETER;
Com1Open : COM.Open;
Com1Close : COM.Close;
Com1Write : COM.Write;
Error : BOOL;
TestString : STRING :=
‘
Test String!
‘
;
3
Write the following source code in “Program” under “ST editor window”.