Siemens SINUMERIK 828D Function Manual page 995

Declaration of the function
FUNCTION_BLOCK FB 29
VAR_INPUT
Func
Signal_1
Signal_2
Signal_3
Signal_4
Signal_5
Signal_6
Signal_7
Signal_8
NewCycle
Var1
Var2
Var3
BufDB
ClearBuf
DataAdr
TestVal
AndMask
END_VAR
VAR_OUTPUT
TestIsTrue
END_VAR
VAR_IN_OUT
BufAddr
END_VAR
Structure for ring buffer
TITLE =
VERSION : 1.0
STRUCT
Field: ARRAY [0 .. 249 ] OF STRUCT
Cycle : INT ;
Signal_1 : BOOL ;
Signal_2 : BOOL ;
Signal_3 : BOOL ;
Signal_4 : BOOL ;
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
: INT ; //Function number: 0 = No function,
//1 = Signal recorder, 2 = Data trigger
: BOOL ; //Start of brake test
: BOOL ;
: BOOL ;
: BOOL ;
: BOOL ;
: BOOL ;
: BOOL ;
: BOOL ;
: BOOL ;
: BYTE ;
: INT;
: INT;
: INT;
: BOOL ;
: POINTER; //Area pointer to testing word
: WORD ; //Value for triggering
: WORD ; //AND mask to the testing word
: BOOL ;
: INT;
P3: Basic PLC Program for SINUMERIK 840D sl
//Ring buffer DB for FB 29
//can be any size of this struct
//Delta cycle to last storage in buffer
//Signal names same as FB 29
13.13 Block descriptions
995