Siemens SIMATIC S7 System Manual page 292

Program instructions
7.7 Pulse output
Table 7- 17
Q0.0
SM66.4
SM66.5
SM66.6
SM66.7
Q0.0
SM67.0
SM67.1
SM67.2
SM67.3
SM67.4
SM67.5
SM67.6
SM67.7
Q0.0
SMW68
292
SM locations for the PTO/PWM control registers
Q0.1 Q0.3
SM76.4 SM566.4 PTO delta calculation error (due to an add error):
•
•
SM76.5 SM566.5 PTO profile disabled (due to user command):
•
•
SM76.6 SM566.6 PTO/PWM pipeline overflow/underflow:
•
•
SM76.7 SM566.7 PTO idle:
•
•
Q0.1 Q0.3
SM77.0 SM567.0 PTO/PWM update the frequency/cycle time:
•
•
SM77.1 SM567.1 PWM update the pulse width time:
•
•
SM77.2 SM567.2 PTO update the pulse count value:
•
•
SM77.3 SM567.3 PWM time base:
•
•
SM77.4 SM567.4 Reserved
SM77.5 SM567.5 PTO single/multiple segment operation:
•
•
SM77.6 SM567.6 PTO/PWM mode select:
•
•
SM77.7 SM567.7 PWM enable:
•
•
Q0.1 Q0.3
SMW78 SMW568 PTO frequency or PWM cycle time value: 1 to 65,535 Hz (PTO); 2
to 65,535 (PWM)
Status bits
0 = No error
1 = Aborted due to error
0 = Profile not manually disabled
1 = User disabled profile
0 = No overflow/underflow
1 = Overflow/underflow
0 = In progress
1 = PTO idle
Control bits
0 = No update
1 = Update frequency/cycle time
0 = No update
1 = Update pulse width
0 = No update
1 = Update pulse count
0 = 1 µs/tick
1 = 1 ms/tick
0 = Single
1 = Multiple
0 = PWM
1 = PTO
0 = Disable
1 = Enable
Other registers
System Manual, V2.3, 07/2017, A5E03822230-AF
S7-200 SMART