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No.EX
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-OMX1001
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Definition and terminology
Terms
Meaning
100
100BASE-TX
Standard of LAN transmission line with communication speed of 100 Mbps.
A
AD value
The signal from the analogue input device is converted to digital, and displayed in
decimal and hexadecimal. These hexadecimal and decimal values are also
outputted to the analogue output device.
Auto negotiation
The function that automatically optimizes the communication speed and method
between the Ethernet devices.
C
Current consumption
The current necessary to operate each unit.
D
DHCP
The protocol which automatically set the information such as IP address which
needs to be registered in order to use the network. Those information are set to
each equipment which are connected to TCP/IP network.
DIN rail
A metal rail conforming with DIN (German) standard.
DLR
An abbreviation for Device Level Ring: Performs a fast switching of the
communication route when any problem occurs with the Ring network, to maintain
communication.
E
EDS
Settable attribute information of a device (each parameter’s object address, etc.)
stored on external disk.
Enclosure (IP□□)
Abbreviation of international (ingress) protection. A standard related to the
protection from external objects (hands, steel ball, steel wire, dust, water, etc.)
applied to the product.
F
Fieldbus
The protocol that uses digital communication to exchange signals between field
equipment (instruments and actuators) running on site and a PLC.
Full duplex
Communication system that can send and receive data at the same time
bi-directionally
H
Half duplex
Communication system that sends and receives data in one direction at a time.
I
IP address
A 32 bit digit sequence which is assigned to identify devices which are connected
to the network.
M
MAC address
A unique number inherent to all devices which are connected to EtherNet/IP
TM
.
Manifold
A form consisting of multiple components. A form made by combining multiple
components
N
NPN output
The output type that uses an NPN transistor to operate output device. It is also
known as a positive common type since a positive potential is applied to the power
supply common line.
Number of outputs
The number of points that can operate output device (solenoid valve)
P
PLC
Abbreviation of programmable logic controller. A digital computer used for
automation of electromechanical processes.
PNP output
The output type that uses a PNP transistor to operate output device. It is also
known as a negative common type since a negative potential is applied to the
power supply common line.
Q
QuickConnect
TM
The function that reduces the time from the power being supplied to the equipment
operating and communication starting.
S
SI unit
Abbreviation of serial interface unit. A unit connected to a PLC to communicate
input and output data.
T
Topology
Connection configuration of the network
