Siemens Simatic S7-200 System Manual page 293

Table 9-15 Configuration/Profile Table, continued
Offset Name
94 0 POS
(+2)
98 0 SPEED
(+6)
102 1 POS
(+10)
106 1 SPEED
(+14)
110 2 POS
(+18)
114 2 SPEED
(+22)
118 3 POS
(+26)
122 3 SPEED
(+30)
Profile Block 1
126 STEPS
(+34)
127 MODE
(+35)
128 0 POS
(+36)
132 0 SPEED
(+40)
... ... ...
Special Memory Locations for the Position Module
The S7-200 allocates 50 bytes of special memory (SM) to each intelligent module, based on the physical
position of the module in the I/O system. See Table 9-16. When the module detects an error condition or a
change in status of the data, the module updates these SM locations. The first module updates SMB200
through SMB249 as required to report the error condition, the second module updates SMB250 through
SMB299, and so on.
Table 9-16 Special Memory Bytes SMB200 to SMB549
SM Bytes for an intelligent module in:
Slot 0
SMB200 to SMB250 to
SMB249 SMB299
Table 9-17 shows the structure of the SM data area allocated for an intelligent module. The definition is
given as if this were the intelligent module is located in slot 0 of the I/O system.
Function Description
Position to go to in move step 0 (4 bytes)
Target speed for move step 0 (4 bytes)
Position to go to in move step 1 (4 bytes)
Target speed for move step 1 (4 bytes)
Position to go to in move step 2 (4 bytes)
Target speed for move step 2 (4 bytes)
Position to go to in move step 3 (4 bytes)
Target speed for move step 3 (4 bytes)
Number of steps in this move sequence (1 byte)
Selects the mode of operation for this profile block (1 byte)
Position to go to in move step 0 (4 bytes)
Target speed for move step 0 (4 bytes)
...
Slot 1 Slot 2
SMB300 to SMB350 to
SMB349 SMB399
Creating a Program for the Position Module
Slot 3 Slot 4
SMB400 to SMB450 to
SMB449 SMB499
Chapter 9
Type
DINT
REAL
DINT
REAL
DINT
REAL
DINT
REAL
DINT
REAL
DINT
REAL
DINT
REAL
DINT
REAL
––
––
DINT
REAL
DINT
REAL
...
Slot 5 Slot 6
SMB500 to
SMB549
281
9