Siemens SIMATIC FM 453, Руководство пользователя

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8-11
FM 453 Servo Drive / Step Drive Positioning Module
C79000-G7076-C453-01
8.3 Data Block for Status Messages (DB-SS)
The following table contains the parameters/data which are readable during
operation.
Table 8-3 Parameters/Data of DB-SS
Byte Variable Type Value Significance of the Variables Comment
0 – 35 DB header
36 – 59 Internal header information
Offset
1)
Variable Type Value Significance of the Variables Comment
24 8 x BOOL Control signals Byte 0
25 8 x BOOL Control signals Byte 1
26 2 x BYTE Control signals Byte 2, 3
28 2 x BYTE Control signals Byte 4, 5
30 2 BYTE Free
32 8 x BOOL Response signals Byte 0
33 8 x BOOL Response signals Byte 1
34 BYTE Response signals Byte 2
35 8 x BOOL Response signals Byte 3
36 BYTE Response signals Byte 4
37 8 x BOOL Response signals Byte 5
38 2 BYTE Free
40 32 x BYTE Reserved
72 DWORD Velocity level 1
76 DWORD Velocity level 2
80 DWORD Voltage/frequency level 1
84 DWORD Voltage/frequency level 2
88 DWORD Setpoint for incremental value
92 STRUCT MDI block struc-
ture MDI block
112 16 x BOOL Single functions
114 16 x BOOL Single commands
116 DINT Zero offset
120 DINT Set actual value
124 DINT Set actual value on the fly
128 16 x BOOL Digital inputs/outputs
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.
Overview
Man-Machine Interface