User Manual

Table Of Contents
Glossary • 211
WAGO-I/O-SYSTEM 750
I/O Modules
Glossary
A
Acyclic
Acyclic processes are triggered as needed and are used, for example, to react
to user input or special events.
Ad hoc profile
The ad hoc profile is one of two profiles in the communication mode sup-
ported by the Bluetooth
®
module. Special feature: In the ad hoc profile, the
module can also communicate with Bluetooth
®
devices from other manufac-
turers.
AFH
The adaptive frequency process "Adaptive Frequency Hopping" (AFH) is a
refinement of the FHSS and is used to temporarily "jump over" defective or
busy portions of the entire available frequency band and switch to other
channels.
See also "FHSS"
Application
An application is a specific use or function programmed by the user.
ASCII
ASCII (American Standard Code for Information Interchange) is a character
coding that includes 128 characters. Each character is described by 7 bits
(2
7
=128). In addition to the Latin alphabet (upper and lower case letters),
Arabic numerals and some punctuation and control characters can be repre-
sented.
Authentication
Authentication is a process for testing the identity transmitted by a commu-
nication partner.
Authorized device
Devices with which connections may be established. No connection may be
established with devices that do not fall into this category.