Siemens SIMATIC FM 353 - Page 197

Human-machine Interface
8-21
FM 353 Stepper Drive Positioning Module
6ES7 353-1AH01-8BG0
Table 8-4 Parameters/data of the DB-SS (DB No. 1000), continued
Offset
1)
CommentSignificance of the variablesValueVariable type
126 BYTE Program selection Program number
127 BYTE Program selection Block number
128 2 x BYTE Program selection Direction, free
130 4 x BYTE Request application data Application data 1-4
134 BYTE Teach In Prog. no.
135 BYTE Teach In Block number
136 DINT Reference coordinate
140 4 x DINT Free
156 DINT Actual position Basic operating data
160 DINT Actual velocity Basic operating data
164 DINT Distance-to-go Basic operating data
168 DINT Target position Basic operating data
172 DINT Sum of current tool offset Basic operating data
176 DINT Rotational speed, rotary axis Basic operating data
180 DINT Free
184 DINT Free
188 STRUCT NC block
struc.
Active NC block
208 STRUCT NC block
struc.
Next NC block
228 DINT Code application 1 Application data
232 DINT Code application 2 Application data
236 DINT Code application 3 Application data
240 DINT Code application 4 Application data
244 DINT Actual position on leading edge Length measurement/
inprocess meas.
248 DINT Actual position on trailing edge Length measurement
252 DINT Length measurement value Length measurement
256 DINT Actual value at ext. block change
260 DINT Frequency output value Servicing data
264 DINT Pulse output counter (0...2
16
-1) Servicing data
268 DINT Free
272 DINT Free
276 DINT Difference between setpoint and actual
positions
Servicing data
280 DINT Free
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.