Siemens SIMATIC FM 453 Manual page 195

8.3 Data Block for Status Messages (DB-SS)
Overview
The following table contains the parameters/data which are readable during
operation.
Table 8-3 Parameters/Data of DB-SS
Byte Variable Type
0 – 35
36 – 59
1)
Offset Variable Type
24 8 x BOOL
25 8 x BOOL
26 2 x BYTE
28 2 x BYTE
30 2 BYTE
32 8 x BOOL
33 8 x BOOL
34 BYTE
35 8 x BOOL
36 BYTE
37 8 x BOOL
38 2 BYTE
40 32 x BYTE
72 DWORD
76 DWORD
80 DWORD
84 DWORD
88 DWORD
92 STRUCT MDI block struc-
ture
112 16 x BOOL
114 16 x BOOL
116 DINT
120 DINT
124 DINT
128 16 x BOOL
1) A variable in the S7 protocol is addressed by the DB No. and, depending on data format, by the DBB, DBW and DBD
No. (offset in DB), as well.
FM 453 Servo Drive / Step Drive Positioning Module
C79000-G7076-C453-01
Value Significance of the Variables
DB header
Internal header information
Value Significance of the Variables
Control signals
Control signals
Control signals
Control signals
Free
Response signals
Response signals
Response signals
Response signals
Response signals
Response signals
Free
Reserved
Velocity level 1
Velocity level 2
Voltage/frequency level 1
Voltage/frequency level 2
Setpoint for incremental value
MDI block
Single functions
Single commands
Zero offset
Set actual value
Set actual value on the fly
Digital inputs/outputs
Man-Machine Interface
Comment
Comment
Byte 0
Byte 1
Byte 2, 3
Byte 4, 5
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
8-11