Siemens Simatic S7-1500 CPU 1512C-1 PN, User Manual

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Technology functions
3.2 Pulse generators
CPU 1512C-1 PN (6ES7512-1CK01-0AB0)
Manual, 12/2017, A5E40898741-AA
51
Offset from start
address
Parameter Meaning
Byte 15 STS_M_INTERVAL Bit 7: Count pulse detected in previous measuring interval
EVENT_CAP Bit 6: Capture event has occurred
EVENT_SYNC Bit 5: Synchronization has occurred
EVENT_CMP1 Bit 4: Comparison event for DQ1 has occurred
EVENT_CMP0 Bit 3: Comparison event for DQ0 has occurred
EVENT_OFLW Bit 2: Overflow has occurred
EVENT_UFLW Bit 1: Underflow has occurred
EVENT_ZERO Bit 0: Zero crossing has occurred
3.2 Pulse generators
3.2.1 Operating modes
3.2.1.1 Operating mode: Pulse-width modulation (PWM)
Properties
The pulse-width modulation (PWM) mode of the compact CPU has the following technical
properties:
Minimum Maximum
Standard output High-speed output
deactivated
High-speed output
activated
Standard
output
High-speed
output deac-
tivated
High-speed
output acti-
vated
Pulse
duration
400 µs with load >
0.1 A
1)
500 µs with load
≥ 2m A
1)
20 µs with load
> 0.1 A
1)
40 µs with load
≥ 2m A
1)
2 µs
1)
10,000,000 µs (10 s)
Period
duration
10 ms
2)
100 μs
2)
10 μs
1)
A lower value is theoretically possible but, depending on the connected load, the output voltage can no longer be output
as complete rectangular pulse
2)
Load dependent