Siemens SINUMERIK 828D

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 NCVAR 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