Profile Table Format For Multiple Segment Pto Operation - Siemens SIMATIC S7-200 System Manual

The format of the profile table is shown in Table 9-15. An additional feature
available with multiple segment PTO operation is the ability to increase or
decrease the cycle time automatically by a specified amount for each pulse.
Programming a positive value in the cycle time delta field increases cycle time.
Programming a negative value in the cycle time delta field decreases cycle time. A
value of zero results in an unchanging cycle time.
If you specify a cycle time delta value that results in an illegal cycle time after a
number of pulses, a mathematical overflow condition occurs. The PTO function is
terminated, and the output reverts to image register control. In addition, the delta
calculation error bit in the status byte (SM66.4 or SM76.4) is set to a one.
If you manually abort a PTO profile in progress, the user abort bit in the status byte
(SM66.5 or SM76.5) will be set to one as a result.
While the PTO profile is operating, the number of the currently active segment is
available in SMB166 (or SMB176).
Table 9-15 Profile Table Format for Multiple Segment PTO Operation
Byte Offset From
Profile Table Start
0
1
3
5
9
11
13
:
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S7-200 Programmable Controller System Manual
A5E00066097-02
Profile Segment
Number
Number of segments (1 to 255); a value of 0
generates a non-fatal error and no PTO output
is generated.
#1 Initial cycle time (2 to 65535 units of the time
base)
Cycle time delta per pulse (signed value)
(-32768 to 32767 units of the time base)
Pulse count (1 to 4294967295)
#2 Initial cycle time (2 to 65535 units of the time
base)
Cycle time delta per pulse (signed value)
(-32768 to 32767 units of the time base)
Pulse count (1 to 4294967295)
: :
: :
SIMATIC Instructions
Description of Table Entries
9-53