Pulse Generators; Operating Modes; Operating Mode: Pulse-Width Modulation (Pwm) - Siemens Simatic S7-1500 CPU 1512C-1 PN User Manual

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