P3: Basic PLC Program for SINUMERIK 840D sl
13.13 Block descriptions
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
939
Data types
The data types of the NCK are listed in the NCVAR selector with the variables. The tables below give the
assignments to the S7 data types.
In order to read a double variable from the NCK without adapting the format, an ANY pointer of the REAL 2 type
must be specified in the target area for read data (e.g. P#M100.0 REAL 2). If the basic program recognizes REAL
2 as the target type when reading a double variable, the data is applied to the PLC data area as a 64-bit floating
point number.
Addr1 := "NCVAR".C1_RP_rpa0_0,
Line1 := W#16#1,
Addr2 := "NCVAR".C1_RP_rpa0_0,
Line2 := W#16#2,
Error := M 1.0,
NDR := M 1.1,
State := MW 2,
RD1 := P#M 4.0 REAL 1,
RD2 := P#M 24.0 REAL 1);
Classification of data types
NCK data type S7 data type
double REAL
double REAL2
float REAL
long DINT
integer DINT
uint_32 DWORD
int_16 INT
uint_16 WORD
unsigned WORD
char CHAR or BYTE
string STRING
bool BOOL
datetime DATE_AND_TIME
To Next Page
Loading...
Need help?
General
