Siemens SIMATIC S7-1500T User Manual

Analog value processing
C.1 Conversion method
CPU 1512C-1 PN (6ES7512-1CK00-0AB0)
Manual, 09/2016, A5E35306440-AB
175
The following figure shows how this works using a 10 Hz interference frequency suppression
as an example. A 10 Hz interference frequency suppression corresponds to an integration
time of 100 ms. The analog on-board I/O supplies a measured value to the CPU every
millisecond within the integration time.
Figure C-4 Interference frequency suppression 10 Hz
The following table provides an overview of the configurable line frequencies, the integration
time and the intervals within which measured values are supplied to the CPU.
Table C- 1 Overview of the configurable line frequencies
Interference frequency suppression
Integration time
Interval
400 Hz
2.5 ms
2 x 1.25 ms
60 Hz
16.6 ms
16 x 1.04 ms
50 Hz
20 ms
20 x 1 ms
10 Hz
100 ms
100 x 1 ms
Note
Basic error with an integration time of 2.5 ms.
With an integration time of 2.5
ms, the measured value is changed by the following values
based on the additionally obtained basic error and noise:
•
with "voltage", "current" and "resistance" by ±0.1 %
•
with "Thermal resistor Pt 100 Standard" by ±0.4 K
•
with "Thermal resistor Pt 100 Climatic" by ±0.3 K
•
with "Thermal resistor Ni 100 Standard" by ±0.2 K
•
with "Thermal resistor Ni 100 Climatic" by ±0.1 K
A detailed description of the basic and operating error is availa
ble in the function manual
Analog value processing (
http://support.automation.siemens.com/WW/view/en/67989094).

Siemens SIMATIC S7-1500T Specifications

General

Brand	Siemens
Model	SIMATIC S7-1500T
Category	Controller
Language	English