Chapter 1 Instruction MASTER-K
1-3
1.3 Terminology
The following table shows the definition of terms used in this manual.
Terms Definition Remark
Module
A standard element that has a specified function which
configures a system. Devices such as CPU or I/O, which
mounted on the base board or base unit.
Example)
CPU module,
Power module,
I/O module, etc.
Unit
A single module or group of modules that performs an
independent operation as a part of PLC system.
Example)
main unit,
expansion unit
PLC system
A system that consists of PLC and peripheral devices that
are controlled by user program.
KGL-WIN
A computer software for Windows 95 / 98 used for write,
editing, and debugging of user program of MASTER-K
series.
KLD-150S
A hand-held loader used for write, editing, and debugging
of user program of MASTER- K series
I/O image area
Internal memory area of CPU module that holds the I/O
status during PLC operation.
FAM
Abbreviation of the ‘Factory Automation Monitoring S/W’. It
is used to call software for process supervision.
Fnet Fieldbus network
Cnet Computer network (RS-232C, RS-422/485)
Pnet ProfiBus Network
Enet Ethernet Network
RTC
Abbreviation of ‘Real Time Clock’. It is used to call general
ICs that contains clock function.
Watchdog timer
An internal timer used for supervising program execution
time. It gives a warning when the execution time exceeds
the preset time.
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