Technology Functions Of The Compact Cpus - Siemens Simatic S7-1500/ET 200MP System Manual

System overview
3.8 Technology functions
Additional information
A detailed description of PID Control in SIMATIC S7-1500 can be found in the Function
Manual "SIMATIC S7-1200, S7-1500 PID Control" SIMATIC S7-1200, S7-1500 PID control
(https://support.industry.siemens.com/cs/ww/en/view/108210036).
3.8.3

Technology functions of the compact CPUs

Technology functions are integrated into the SIMATIC S7-1500 compact CPUs.
Function
Six high-speed counters
Frequency measurement
Period duration measurement
Velocity measurement
Pulse width modulation (PWM
output)
Pulse Train Output (PTO output)
Frequency output
Benefits
Compared with the other SIMATIC S7-1500 CPUs, the compact CPUs offer added value in a
small space:
● They combine CPU with front display and inputs/outputs in one enclosure
● compact size with high performance
● important technology functions such as counting, measuring and positioning are
integrated
● cost effective compared to modular systems with CPU and modules
● space saving design
● can be expanded by SIMATIC S7-1500 input and output modules
78
Value Description
up to 100 kHz For pulse and incremental encoders
0.04 Hz - 400 kHz
2.5 μs - 25 s
Dependent on measurement interval and signal evaluation
Unit can be defined by user
max. 4 (up to 100 Output of a signal with defined period duration and variable
kHz) on-load factor at DQ
max. 4 (up to 100 Output of position information, e. g. for activation of stepper
kHz) motor drives or simulation of an incremental encoder
up to 100 kHz Precise assignment of a frequency value with high frequen-
cies
Automation system
System Manual, 12/2017, A5E03461182-AE