Siemens SIMATIC S7 - Page 293

Program instructions
7.7 Pulse output
S7-200 SMART
System Manual, V2.3, 07/2017, A5E03822230-AF
293
SMW70
SMW80
SMW570
PWM pulse width value: 0 to 65,535
SMD72
SMD82
SMD572
PTO pulse count value: 1 to 2,147,483,647
SMB166 SMB176 SMB576 Number of the segment in progress:
Multiple-segment PTO operation only
SMW168 SMW178 SMW578 Starting location of the profile table (byte offset from V0):
Multiple-segment PTO operation only
Table 7- 18 PTO/PWM control byte reference
Result of executing the PLS instruction
Control
register
(Hex val-
ue)
Enable
Select
mode
PTO
Segment
operation
Time base
Pulse
count
Pulse
width
Cycle time
/ frequen-
cy
16#80
Yes
PWM
1 µs/cycle
16#81 Yes PWM 1 µs/cycle Update
cycle time
16#82
Yes
PWM
1 µs/cycle
Update
16#83 Yes PWM 1 µs/cycle Update Update
cycle time
16#88
Yes
PWM
1 ms/cycle
16#89 Yes PWM 1 ms/cycle Update
cycle time
16#8A
Yes
PWM
1 ms/cycle
Update
16#8B Yes PWM 1 ms/cycle Update Update
cycle time
16#C0
Yes
PTO
Single
16#C1 Yes PTO Single Update
frequency
16#C4 Yes PTO Single Update
16#C5 Yes PTO Single Update Update
frequency
16#E0
Yes
PTO
Multiple