Item Names (S7 Item Syntax); Data Blocks - Siemens 3964R User Manual

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Item Names (S7 Item Syntax)

The Siemens 3964R I/O Server supports the S7 item/point names that will be translated
internal into S5 item/point names. This means not all S7 items/points can be used by
this server. The tables below list the item/point names supported by the server:

Data Blocks

Data Format
Double Word
Note All data blocks are Read/Write (x=3 to 255, m= 0 to 255, b=0 to 7, n= 0 to 254,
k=252, z=length of character string, n and k must be even). The string must contain an
even number of characters, e.g., 2, 4, 100, 128, etc.
Items
Bit D<B>x,Xm.b
String D<B>x,Sm,z
D<B>x,STRINGm,z
Byte D<B>x,Bm
D<B>x,BYTEm
Char D<B>x,CHARm
Word D<B>x,Wn
D<B>x,WORDn
Integer D<B>x,INTn
D<B>x,Dk
D<B>x,DWORDk
Double D<B>x,DINTk
Integer
Real D<B>x,REALk
Suffix Tag
Type
Discrete
Message
Message
Integer
Integer
Integer
Integer
Integer
KT Message
Integer -32768 to 32767
BCD Integer
Integer 0 to 2147483647
Integer 0 to 2147483647
Integer -2147483648 to
BCD Integer -2147483648 to
Real
Range
0 or 1
2 to 128
2 to 128
0 to 255
0 to 255
-128 to 127
0 to 65535
0 to 65535
0.0 to 999.3
-999 to 999
2147483647
2147483647
+-3.4e38