Siemens D7-SYS - Page 338

Communications configuring
System- and communication configuring D7-SYS - SIMADYN D 3-249
Edition 12.2003
SNV=TRUE (message numbers available)
STM=FALSE (message text not available)
SSF=TRUE (standardized format)
Contents Message structure
(max. 48 bytes)
Net data structure Data format No. of data
Spontaneous ID Unsigned8 1. variable unit Unsigned8 2
Sequence number Unsigned8
Message type descrip. 1 Octet 2. variable unit Octet-String 2
Message type 1 Octet
Prefix Floating-Point 3. variable unit Floating-Point 3
Suffix Floating-Point
Measured value Floating-Point
Measured value
dimensions text
8 characters 4. variable unit Visible-String 32
Message instant 24 characters
Table 3-77 Standard format with number without text
SNV=FALSE (message numbers not available)
STM=FALSE (message text not available)
SSF=TRUE (standardized format)
Contents Message structure
(max. 48 bytes)
Net data structure Data format No. of data
Spontaneous ID Unsigned8 1. variable unit Unsigned8 2
Sequence number Unsigned8
Message type descrip. 1 Octet 2. variable unit Octet-String 2
Message type 1 Octet
Measured value Floating-Point 3. variable unit Floating-Point 1
Measured value
dimensions text
8 characters 4. variable unit Visible-String 32
Message instant 24 characters
Table 3-78 Standard format without number and text