Siemens D7-SYS - Page 188

Communications configuring
System- and communication configuring D7-SYS - SIMADYN D 3-99
Edition 12.2003
Message objects are always "Record" type objects. The structures are
shown in the following tables:
NOTE
Connection STC at message output block MSI must be set to "1".
SSF=1 (standardized format)
Contents Message structure FMS structure
Spontaneous ID Unsigned8 Unsigned8
Sequence number Unsigned8 Unsigned8
Message type description 1 Octet Octet-String 2
Message type 1 Octet
Only available, Prefix Floating-Point Floating-Point
if SNV=1 Suffix Floating-Point Floating-Point
Measured value Floating-Point Floating-Point
Measured value
dimension text
8 characters
Visible-String 32
(if STM=0);
Message instant 24 characters Visible-String 92
Only available,
if STM=1
Message text 60 characters (if STM=1)
Table 3-41 SSF=1 (standardized format)
SSF=0 (HEX format)
Contents Message structure FMS structure
Spontaneous ID Unsigned8 Unsigned8
Sequence number Unsigned8 Unsigned8
Message type description 1 Octet Octet-String 2
Message type 1 Octet
Only available, Prefix Unsigned16 Unsigned16
if SNV=1 Suffix Unsigned16 Unsigned16
Measured value
normalization factor
Unsigned32 Unsigned32
Measured value 4 Octets Octet-String 6
Measured value
connector type
2 Octets
Measured value
dimension text
8 characters Visible-String 8
Message instant Time and Date Time-Of-Day (6 Byte)
Only available,
if STM=1
Message text 60 characters Visible-String 60
Table 3-42 SSF=0 (HEX format)