
Siemens TCP/IP Ethernet Driver Help
Array ICHAR0,10 MCHAR0,10 DB1,CHAR0,10
W
Word
Word
Array
IW0
IWORD0
IW0,10
IWORD0,10
MW0
MWORD0
MW0,10
MWORD0,10
DB1,W0
DB1,WORD0
DB1,W0,10
DB1,WORD0,10
INT Short
Array
IINT0
IINT0,10
MINT0
MINT0,10
DB1,INT0
DB1,INT0,10
D
DWORD
DWord
Array
ID0
IDWORD0
ID0,10
IDWORD0,10
MD0
MDWORD0
MD0,10
MDWORD0,10
DB1,D0
DB1,DWORD0
DB1,D0,10
DB1,DWORD0,10
DINT Long
Array
IDINT0
IDINT0,10
MDINT0
MDINT0,10
DB1,DINT0
DB1,DINT0,10
REAL Float
Array
IREAL0
IREAL0,10
MREAL0
MREAL0,10
DB1,REAL0
DB1,REAL0,10
String String ISTRING0.10 MSTRING0.10 DB1,STRING0.10
Note:
All brand and product names are trademarks, registered trademarks, or service marks of their respective
holders.
Siemens STEP 7 Item Syntax
The following support for Siemens STEP 7 Variable Table (VAT) syntax is considered to be limited. Care must be
taken as the data type for a given S7 data type/suffix may differ from the data type for the same S7 data
type/suffix in the specified product. S7 data types not included below are not supported by this driver. The
following information is intended to be a guideline for users that are already familiar with and/or prefer the
syntax of the specified product. For preferred item syntax, refer to Standard S7-300/400/1200/1500 Item
Syntax.
Address Syntax
Input, Output, Peripheral, Flag Memory Types
<memory type><S7 data type><address>
Timer and Counter Memory Types
<memory type><address>
DB Memory Type
DB<num>.<S7 data type><address>
Where <num> ranges from 1 to 65535.
See Also: Examples
Memory Types
Memory Type Description Address Range Data Type Access
I
E
Inputs
Dependent on S7 Data Type
Read/Write
Q
A
Outputs Read/Write
PI
PE
Peripheral Inputs Read Only
PQ
PA
Peripheral Outputs Read/Write
M
F
Flag Memory Read/Write
DB Data Blocks Read/Write
T Timers T0-T65535 DWord, Long Read/Write
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