F_iecGetSCS
This function decodes the single command state from byte variable. One byte variable yields up to 8 single command states. Every single command state occupies 1 bit.
FUNCTION F_iecGetSCS: E_IEC870_5_101SCS
VAR_INPUT
in : BYTE;(* Byte variable from where the single command state have to be decoded *)
offset : UDINT(0..7); (* Single command state offset *)
END_VAR
Example:
Decoding the state of 4 single commands from one byte variable.
PROGRAM MAIN
VAR
memarea AT%MB0 : ARRAY[0..10] OF BYTE;
eSCS : E_IEC870_5_101SCS;
ENd_VAR
eSCS := F_iecGetSCS( memarea[0], 0 );
eSCS := F_iecGetSCS( memarea[0], 1 );
eSCS := F_iecGetSCS( memarea[0], 2 );
eSCS := F_iecGetSCS( memarea[0], 3 );
Requirements
Development Environment | Target System | PLC libraries to include |
|---|---|---|
TwinCAT v2.10.0 Build >= 1324 | PC or CX (x86, ARM) | TcIEC870_5_101.Lib ( Standard.Lib; TcBase.Lib; TcSystem.Lib; TcUtilities.Lib are included automatically ) |