YOKOGAWA Vnet/IP, Technical Information

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Glossary
The following table describes the terms commonly used in this document.
Table Glossary terms (1/2)
Term Description
1000BASE-LX A gigabit Ethernet optical interface standard specified in IEEE 802.3 with a
transmission rate of 1 Gbps.
1000BASE-T A gigabit Ethernet UTP interface standard specified in IEEE 802.3 with a transmission
rate of 1 Gbps.
100BASE-TX A Fast Ethernet UTP interface standard specified in IEEE 802 with a transmission rate
of 100 Mbps.
APCS An Advanced Process Control Station (APCS) performs control functions with a station
to improve advanced control and plant efficiency.
BCV A generic name for Bus Converter. It connects V net stations to V net or HF Bus
stations in other domains.
BCV-H A Bus Converter for HF Bus. It connects V net stations to HF Bus stations in other
domains.
BCV-L A Bus Converter for RL Bus. It connects V net stations to RL Bus stations in other
domains.
BCV-V A Bus Converter for V net. It connects V net stations to V net stations in other domains.
CENTUM A generic name for Integrated Production Control System CENTUM VP and CENTUM
CS 3000.
CENTUM system A system that consists of CENTUM components.
Control bus TCP/IP
communications
The TCP/IP protocol communications on the control bus V net.
Control Communications A generic name for the control data communication between CENTUM or ProSafe-RS
stations.
Control network The transmission path for control communication between CENTUM and ProSafe-RS
systems.
DCOM A Microsoft-defined specification for distributed object technology. It enables software
components referred to as COM objects to communicate and exchange data and
processing requests on a network.
ENG A station with engineering functions that performs CENTUM system configuration and
maintenance management. It can be the same station as the HIS.
Exaopc A station on which Exaopc OPC Interface Package is installed.
Exapilot A station on which Exapilot Operation Efficiency Improvement Package is installed.
Exaquantum A station on which Exaquantum Plant Information Management System is installed.
FCS A Field Control Station (FCS) is a component of the CENTUM system that performs
process control and manages communications with subsystems such as PLCs.
Firewall A generic name for functions and devices that protect the local network against
unauthorized access from an external network.
Gigabit Ethernet An Ethernet standard for 1 Gbps transmission rate, as defined by IEEE802.3.
GSGW A Generic Subsystem Gateway Station (GSGW) collects and configures data of
various subsystem types through OPC DA servers. It is a station with the Generic
Subsystem Gateway Package.
HIS A Human Interface Station (HIS) serves as a human machine interface of the
CENTUM system. It is used for operation and monitoring.
HUB A device that connects network devices on an Ethernet network.
Information network The transmission path for file transfer and data communication between CENTUM
or ProSafe-RS stations and generic Ethernet devices. The information network uses
Ethernet standard protocols.
IP address An Internet Protocol (IP) address is a logical address that identifies network devices.
Layer 2 switch (L2SW) A network device that relays packets at Layer 2 (Data Link Layer) of the OSI reference
model.
Layer 3 switch (L3SW) A network device that relays packets at Layer 3 (Network Layer) of the OSI reference
model.
MAC address Abbreviation of Media Access Control address which is a unique address that is
assigned to each Ethernet interface for identification.
Dec. 26, 2016-00