Structure Of The Machine Data Overview - Siemens SIMATIC S5 Manual

Structure of the BCD number:
Sign
Decades
b i t : 3 1 28 27 . .24
e.g.
actual position value

Structure of the Machine Data Overview

6.3.8.7
The machine data overview is an extended machine data directory. You can read the overview
from the IP247 with
BA = 66
Fifteen data words are required. If there is no machine data record on an axis, the data words
are assigned the value zero.
The machine data overview stored in data block DBx from data word DWn is as follows:
DW n
+00000
DW
DW n+2 +00001
DW n+3 +00070
DW n+4
DW n+5 +00002
DW n+6 +00000
DW n+7 +00002
DW +00070
+00000
DW n+9
+00003
+00000
+00003
DW n+13 +00070
+00000
4
5 1 0
1 0
2 3 . . 2 0
DW n
Machine data DB number
on the IP247
Module number
number
Length of machine data DB in
Machine data error
KF
on the IP247
Module number
Axis number
KF
Length of machine data DB in
KF
Machine data error
KF
KF
on the IP247
Module number
KF
Axis number
KF
Length of machine data DB in words
KF
Machine data error
Standard Function Block FB165
3 2
1 0 10'
1 0
8 7
.
DW
words
words
10°
. . . 0
6 - 4 9