Systems and proceses
All activities in nature, society and technology.
a process
Every piece of data that goes from the sender to the recipient
Information
Process of associating numerical value with an observed quantity.
a Measurement
A process in a system by which one or more variables affect output values.
Control
Timer type in the LOGO program with switch on delay.
a TON timer
A creation that acts independently and with purpuse.
a System
It serves to transfer information.
a Signal
It converts process variables into a measurement signal.
a Measuring transducer
Type of control systems by division according to the method of signal processing, based on logic algebra.
a Logic control system
Code in which two successive values are different in only one bit.
Gray code
It accumulates substances and energy to maintain the process.
Process space
A signal that does not change over the time period of interest
a Static signal
Type of measuring transducer that drows energy from the process.
a Active transducer
Type of signal in which the signal processing is clocked.
a Synchronous signal
A logical function that can be written with formula A+B.
OR
The influence of the environment on the system is visible by observing this type of values.
Input values
Signal that changes over the time period of interest.
a Dynamic signal
Type of measuring transducer like thermal, NTC and PTC resistors.
a Passive transducer
Type of control system in which order of program execution depends on time, path and step
Program control
The code obtained using the middle ten combinations of code 8421; combinations with all four zeros or all four ones do not appear.
EXCESS-3 code
A set of elements among which there are no seperate subsets
Creation
Things like sound, light, colour, electricity and heat.
Signals
Type of measuring transducer that gives a measuring signal proportional to the measured temperature
a Temperature measuring transducer
A component required for the self-maintenance of the process, it has two stable states
a Bistable
A physical value that is described by amplitude, time and continuous flow.
a Signal