Siemens Simatic S7 Series

Open loop motion control
12.10 Advanced topics
S7-200 SMART
System Manual, 09/2015, A5E03822230-AC
553
Note
You can have between 1 and 16 steps in the Configuration/Profile table, Profile block 0.
Table 12- 41 Configuration/Profile table: Profile block 1
Configuration/Profile table
Byte offset
Name
Function description
Type
Profile block 1
X
1
STEPS Number of steps in this move sequence (1 byte)
Note: There can be up to 16 steps.
--
(X + 1) MODE Selects the mode of operation for this profile block (1
byte)
--
(X + 2)
Step 0: POS
Position to go to in move step 0 (4 bytes)
DInt/Real
(X + 4)
Step 0: SPEED
The target speed for move step 0 (4 bytes)
DInt/Real
...
...
...
...
1
The offset of Profile block 1 and subsequent blocks is variable and dependent upon the number of
steps configured in the largest profile. The offset is determined by the following formula:
Offset of Profile block x = CB_LEN + IB_LEN + (x * PF_LEN)
Table 12- 42 Profile detail for Mode 0 (Absolute position)
Byte offset
from start of
profile
Step
number
Name
Field size
Value
+0 STEPS byte n = Number of steps configured in this
profile
+1
MODE
byte
0 = Absolute position
+2
0
POS
dint/fp
Destination position in step 0
+6 SPEED dint/fp Target speed for step 0
●
●
●
(4 * n) + 2
n
POS
dint/fp
Destination position in step n
($ * N) + 6
SPEED
dint/fp
Target speed for step n