Siemens SINUMERIK 828D Function Manual page 939

Addr1 :=
Line1 :=
Addr2 :=
Line2 :=
Error :=
NDR :=
State :=
RD1 :=
RD2 :=
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.
Classification of data types
NCK data type
double
double
float
long
integer
uint_32
int_16
uint_16
unsigned
char
string
bool
datetime
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.
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
"NCVAR".C1_RP_rpa0_0,
W#16#1,
"NCVAR".C1_RP_rpa0_0,
W#16#2,
M 1.0,
M 1.1,
MW 2,
P#M 4.0 REAL 1,
P#M 24.0 REAL 1);
S7 data type
REAL
REAL2
REAL
DINT
DINT
DWORD
INT
WORD
WORD
CHAR or BYTE
STRING
BOOL
DATE_AND_TIME
P3: Basic PLC Program for SINUMERIK 840D sl
13.13 Block descriptions
939