Siemens SIMATIC CM35 Manual page 130

8.6 Reading the Actual Positions
CM35 Counter Module
(4) J31069-D0416-U001-A5-7618
In positioning mode, you can read the current actual positions from the
CM35.
To ensure data consistency, the read- - access must be performed with one load
command (L PID).
Table 8-8 shows the addresses of the individual axes for reading the actual
position.
Table 8-8 Assignment of the output area for reading the actual positions
Offset to the Module
Start Address
+0
+4
+8
+12
Example: Positioning mode
- - Read actual position of axis 4
- - The CM35 has the module start address 256.
L PID 268
T MD16
Positioning Operating mode
Meaning
Actual position of
axis 1
Actual position of
axis 2
Actual position of
axis 3
Actual position of
axis 4
// Address = 256 + 12, actual position of
axis 4
// Save actual position
Value Range
- - 2,147,483,648
to
+ 2,147,483,647 2 147 483 647
8-19