Siemens SIMATIC S7-400 Operating Instructions Manual page 100

Programming the OPC UA client blocks
5.8 FB235 UA_ReadList
Parameter
MemArea
ByteOffset
BitOffset
Data type
The following table explains the coding of the data type in the "DataType" parameter of the
UDT UAAnyPointer.
Table 5- 13
Hexadecimal code
b#16#01
b#16#02
b#16#03
b#16#04
b#16#05
b#16#06
b#16#07
b#16#08
b#16#09
b#16#0A
b#16#0B
b#16#0C
b#16#0E
b#16#02 *
* The string uses the lower-level data type BYTE. Refer to the special features in the section
Data types (Page 40).
Memory area
The following table explains the coding of the memory area in the "MemArea" parameter of
the UDT UAAnyPointer.
100
S7 data type Range of values
WORD See "Meaning"
WORD Depends on the
memory area, see
"Meaning"
WORD 0 .. 7
Coding of the data type
S7 data type
BOOL
BYTE
CHAR
WORD
INT
DWORD
DINT
REAL
DATE
TIME_OF_DAY (TOD) Time of day
TIME
S5TIME
DATE_AND_TIME
(DT)
STRING
Meaning
Memory area
Enter either the number of a DB or a
memory area. If you specify a memory area,
enter a zero in "DB_Number".
For the range of values of the memory area
see below, table "Coding of the memory
area".
Byte offset in the specified memory area, as
of which the data is accessed.
Bit offset in the specified memory area
Description
Bit
Byte (8 bits)
Character (8 bits)
Word (16 bits)
Integer (16 bits)
Word (32 bits)
Integer (32 bits)
Floating-point number (32 bits)
Date
Time
Data type S5TIME
Date and time (64 bits)
Character string
Operating Instructions, 01/2017, C79000-G8976-C427-02
CP 443-1 OPC UA