Siemens SINUMERIK 840D sl Function Manual page 1041

Variable value ranges
Signal
Enable:
Funct:
S7Var :
IVAR1:
IVAR2:
Error:
ErrCode:
Example 1: Read double word of position offset 4 with semaphore in byte 0 and store in MD100:
● Data type Dword (4 bytes)
● Position offset 4
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Typ Type Value range
e
I BOOL 0 (FALSE), 1 (TRUE)
I BYTE
I ANY S7 data area, except lo‐
I INT 0 ... 4095
I INT -1 ... 4095
O BOOL 0 (FALSE), 1 (TRUE)
O INT 20, 21, 22, 23, 24, 25
P3: Basic PLC program for SINUMERIK 840D sl
Description
1: Transferring data
3, 4 3: Read data
4: Write data
Source/destination data storage area
cal data
Position offset
Semaphore byte
Transfer without semaphore: -1
1: An error is active
20: Alignment error
21: illegal position offset
22: Illegal semaphore byte
23: No new data to be read
24: Cannot write data
25: Local data parameterized for
S7Var
13.17 Block descriptions
1041