Glossary
SICAM RTUs, User Manual SICAM CMIC
411
DC8-001-2.09, Edition 08.2016
Periodical information
A periodical information has a deterministic transmission behavior and is used for the exchange of a pro-
cess signal or a derived information between the peripheral element and the higher-level open-/closed-
loop control function.
A periodical information is always transmitted in groups and consequently with the transmission already
have a chronologically consistent interrelationship.
Periodical transmission
Exchange of a process signal or a derived information between the peripheral element and the higher-
level open-/closed-loop control function.
Peripheral element
The peripheral element is a supplementary system element for process data acquisition and/or control of
actuators. It comunicates via the Ax-PE-Bus with the basic system element.
PLC
ž
Programmable Logic Controller
PRE
ž
Protocol Element
Programmable logic controller
Digitally operating electronic system, designed for use in an industrial environment, which uses a pro-
grammable memory for the internal storage of user-oriented instructions for implementing specific func-
tions such as logic, sequencing, timing, counting and arithmetic, to control, through digital or analog inputs
and outputs, various types of machines or processes. Both the PC (PLC) and its associated peripherals
are designed so that they can be easily integrated into an industrial control system and easily used in all
their intended functions (acc. to IEC 61131-1, chapter 2.50).
Protocol element
The protocol element is a supplementary system element for communication with other automation units
or control systems. It comunicates via the internal bus (ZBG-Bus) with the basic system element.
PSR
SICAM TOOLBOX II configuration tool
PSTN
Public Switched Telephone Network
PT 100
Temperature-dependent resistance element with PT 100 characteristic
Q
R
RADIUS
Remote Authentication Dial-In User Service
Client-Server protocol that serves for the central administration of authentication, authorization and for the
accounting (AAA) for users which connect to a network. RADIUS is used with dial-up connections via mo-
dem, ISDN, VPN, WLAN (IEEE 802.1X) and DSL. The RADIUS Server provides for the service the au-
thentication (check of user name and password).
Routing
Routing of data streams: Messages are "routed" from their sources to their sinks. This works similar to di-
recting railroad cars by setting track switcher. Messages contain data point related information.
Retained variables
Variables in a non-volatile memory. The value of the variable is retained during a power failure.
Router
Network device for connecting two independent network segments as internet and LAN
RS-232
Standard for serial data transmission
RS-485
Standard for serial data transmission
RTS
Request to Send (switch on transmit device), control line of an RS-232 interface
Содержание SICAM CMIC
Страница 8: ...Preface 8 SICAM RTUs User Manual SICAM CMIC DC8 001 2 09 Edition 08 2016 ...
Страница 10: ...Open Source Software Used in SICAM CMIC 10 SICAM RTUs User Manual SICAM CMIC DC8 001 2 09 Edition 08 2016 ...
Страница 20: ...Table of Contents 20 SICAM RTUs User Manual SICAM CMIC DC8 001 2 09 Edition 08 2016 Glossary 405 ...
Страница 46: ...Installation 46 SICAM RTUs User Manual SICAM CMIC DC8 001 2 09 Edition 08 2016 ...
Страница 62: ...Interfaces and Circuitry 62 SICAM RTUs User Manual SICAM CMIC DC8 001 2 09 Edition 08 2016 ...
Страница 102: ...Preparing the Engineering 102 SICAM RTUs User Manual SICAM CMIC DC8 001 2 09 Edition 08 2016 ...
Страница 130: ...Engineering via SICAM TOOLBOX II 130 SICAM RTUs User Manual SICAM CMIC DC8 001 2 09 Edition 08 2016 ...
Страница 334: ...Error Handling 334 SICAM RTUs User Manual SICAM CMIC DC8 001 2 09 Edition 08 2016 ...
Страница 386: ...Set Up Dial Up Connection via PPP 386 SICAM RTUs User Manual SICAM CMIC DC8 001 2 09 Edition 08 2016 ...
Страница 394: ...Install Security Certificate 394 SICAM RTUs User Manual SICAM CMIC DC8 001 2 09 Edition 08 2016 ...
Страница 404: ...Use Cases 404 SICAM RTUs User Manual SICAM CMIC DC8 001 2 09 Edition 08 2016 ...
Страница 414: ...Glossary 414 SICAM RTUs User Manual SICAM CMIC DC8 001 2 09 Edition 08 2016 X Z ...