Firmware Functions Of The Digital On-Board I/O Module - Siemens Simatic S7-1500 CPU 1512C-1 PN User Manual

Product overview
2.2 Hardware properties and firmware functions
2.2.6

Firmware functions of the digital on-board I/O module

Functions of the digital inputs
The digital inputs of the digital on-board I/O module have the following functions:
Function
Technology functions
Reconfiguration in RUN
Support of the value status
(Quality Information, QI)
34
Description
The high-speed digital inputs of the digital on-board
I/O module support technology functions such as fast
counting, measuring, position detection and pulse
generators (PWM, PTO and frequency output). Due
to the supported technology functions, the compact
CPUs are suitable for controlling pumps, fans, mixers,
conveyor belts, lifting platforms, gate control systems,
building management systems, synchronized axes,
etc.
You have the option of reassigning parameters for the
digital on-board I/O module in RUN (for example,
values for input delay of individual channels can be
modified without affecting the other channels).
Value status = 1 ("Good") indicates that the value of
the assigned input at the terminal is valid.
Value status = 0 ("Bad") indicates that no/too little
supply voltage L+ is applied at the terminal and that
the read value is therefore not valid.
Additional information
Chapter Technology functions
(Page 42)
Chapter Parameters of the digital
•
on-board I/O (Page 125)
Chapter Parameter assignment
•
and structure of the parameter
data records of the digital on-
board I/O (Page 175)
Chapter Address space of the digital
on-board I/O (Page 116)
CPU 1512C-1 PN (6ES7512-1CK01-0AB0)
Manual, 12/2017, A5E40898741-AA