Chapter 1 Introduction
XBC E-Type Main Unit 1-6 Ver. 1
1.5 Terminology
The following table gives definition of terms used in this manual.
Terms Definition Remark
Module
A standard element that has a specified function which configures
the system. Devices such as I/O board, which inserted onto the
mother board.
Expansion module,
Special module,
RTC module
Unit
A single module or group of modules that perform an independent
operation as a part of PLC systems.
Main unit,
Expansion unit
PLC System
A system which consists of the PLC and peripheral devices.
A user program can control the system.
-
XG5000
A program and debugging tool for the MASTER-K series.
It executes program creation, edit, compile and debugging.
(PADT: Programming Added Debugging Tool)
-
I/O image area
Internal memory area of the CPU module which used to hold I/O
status.
-
Cnet Serial Communication Network
FEnet Fast Ethernet Network -
Pnet Profibus-DP Network -
Dnet DeviceNet Network -
RTC
Abbreviation of ‘Real Time Clock’. RTC available only through use
of XBO-RTCA option board
-
Watchdog Timer
Monitors pre-
set execution times of programs and warns if a
program is not competed within the pre-set time.
-
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