Example Of A Pulse Train Output Using Multiple Segment Operation - Siemens SIMATIC S7-200 System Manual

SIMATIC Instructions
Example of Pulse Train Output Using Multiple Segment Operation
MAIN OB1
MAIN OB1
Network 1
SM0.1
SUBROUTINE 0
Network 1
SM0.0
16#AO
Figure 9-23
9-68
LAD
Q0.0
On the first scan,
R
reset image
1
register bit low, and
SBR0
call subroutine 0.
EN
Set up control byte:
- select PTO operation
MOV_B
- select multiple segment
EN ENO
operation
select µs increments
IN OUT SMB67
- enable the PTO function
MOV_W Specify that the start address
of the profile table is V500.
EN ENO
IN OUT SMW168
500
Set number of profile
MOV_B
table segments to 3.
EN ENO
3 IN OUT VB500
Set the initial cycle time for
MOV_W
segment #1 to 500 µs
EN ENO
IN OUT VW501
500
Set the delta cycle time for
MOV_W
segment #1 to -2 µs
EN ENO
IN OUT
-2 VW503
MOV_D
Set the number of pulses
EN ENO in segment #1 to 200.
IN OUT
200 VD505

Example of a Pulse Train Output Using Multiple Segment Operation

STL
Network 1
LD SM0.1
R Q0.0, 1
CALL 0
Network 1
LD SM0.0
MOVB 16#A0, SMB67
MOVW 500, SMW168
MOVB 3, VB500
MOVW 500, VW501
MOVW -2, VD503
MOVD 200, VD505
S7-200 Programmable Controller System Manual
A5E00066097-02