User`s guide

38 Wonderware Siemens SIMATIC NET S7 I/O Server
Block Items (continued)
Data Format Item/Point Suffix Data Type Range
Byte Array
BLd,Bx,v
Message Hex ASCII String
BLd,BYTEx,v
Message Hex ASCII String
Char
BLd,CHARx
Integer -128 to 127
DT Message 1990-1-1-0:00:00.000 to
2089-12-31-23:59:59.999
Char Array
BLd,CHARx,v
Message Hex ASCII String
Word
BLd,Wn
Integer 0 to 65535
BLd,WORDn
Integer 0 to 65535
BCD Integer 0 to 9999
KT Message 0.0 to 999.3
S5T Message 0ms to 2h46m30s
TR Real 0.0 to 9990.0 (s)
D Message 1990-1-1 to 2168-12-31
Word Array
BLd,Wn,v
Integer 0 to 65535
BLd,WORDn,v
Integer 0 to 65535
Integer
BLd,INTn
Integer -32768 to 32767
BCD Integer -999 to 999
D Message 1990-1-1 to 2168-12-31
Integer Array
BLd,INTn,v
Message Hex ASCII String
Double Word
BLd,Dm
Integer 0 to 2147483647
BLd,DWORDm
Integer 0 to 2147483647
BCD Integer 0 to 99999999
TOD Message 0:00:00.000 to 23:59:59.999
T Message -24D_20H_31M_23S_648MS to
24D_20H_31M_23S_647MS
Double Word
BLd,Dm,v
Message Hex ASCII String
Array
BLd,DWORDm,v
Message Hex ASCII String
Double Integer
BLd,DINTm
Integer -2147483648 to 2147483647
BCD Integer -9999999 to 9999999
TOD Message 0:00:00.000 to 23:59:59.999
T Message -24D_20H_31M_23S_648MS to
24D_20H_31M_23S_647MS
Double Integer
Array
BLd,DINTm,v
Message Hex ASCII String
Real
BLd,REALm
Real
±3.4e38
Real Array
BLd,REALm,v
Message Hex ASCII String
Note All Block Items are ReadOnly (d=0 to 4,294,967,296 (this is the r_id configured
in the SFB 12 call in the remote PLC), x=0 to 65,533, n=0 to 65,532, m=0 to 65,530,
y=0 to 7, v=0 to 65534). The longest string or array that can be read in a cyclic service
has the length of 65534 bytes. The longest string InTouch can process is 131 bytes.
Arrays are converted into HEXASCII strings representing the big endian format of the
binary data. The Wonderware Siemens SIMATIC NET S7 I/O Server will not process
a write (POKE) to a Block Item.