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Terms - Mitsubishi Electric MELSEC iQ-RJ71EN71 User Manual

Ethernet.
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TERMS

Unless otherwise specified, this manual uses the following terms.
Term
ARP
Buffer memory
BUFRCV
BUFRCVS
BUFSND
CLOSE
Control CPU
Control system
CPU module
CPU module (built-in Ethernet port part)
Dedicated instruction
Device
Device supporting iQSS
Engineering tool
ERRCLEAR
ERRRD
Ethernet device
Ethernet-equipped module
External device
FTP
Global label
ICMP
Intelligent function module
Label
MELSECNET/10
MELSECNET/H
MODBUS device
MODBUS/TCP
Module label
Network module
Description
The abbreviation for Address Resolution Protocol. This protocol is used to obtain the MAC address of
Ethernet from an IP address.
Memory in an intelligent function module for storing data such as setting values and monitored values.
When integrated into the CPU module, this memory refers to a memory for storing data such as setting
values and monitored values of the Ethernet function, and data used for data communication of the
multiple CPU system function.
A generic term for the GP.BUFRCV and ZP.BUFRCV
A generic term for the G.BUFRCVS and Z.BUFRCVS
A generic term for the GP.BUFSND and ZP.BUFSND
A generic term for the GP.CLOSE and ZP.CLOSE
A CPU module that controls connected I/O modules and intelligent function modules.
The multiple CPU system allows the user to assign this control to any CPU module on a module-by-
module basis.
A system that takes control and performs network communications in a redundant system.
A generic term for the MELSEC iQ-R series CPU modules
A built-in Ethernet port part of the CPU module (CPU part for the RnENCPU) ( MELSEC iQ-R
Ethernet/CC-Link IE User's Manual (Startup))
An instruction for using the functions of a module
A device (X, Y, M, D, or others) in a CPU module
A generic term for a device which supports iQ Sensor Solution.
For details on iQ Sensor Solution, refer to the following.
 iQ Sensor Solution Reference Manual
Another term for the software package for the MELSEC programmable controllers
A generic term for the GP.ERRCLEAR and ZP.ERRCLEAR
A generic term for the GP.ERRRD and ZP.ERRRD
A generic term for the devices supporting IP communication (such as personal computers)
A generic term for the following modules when the Ethernet function is used:
• RJ71EN71
• CPU module
A generic term for the personal computer and other Ethernet-equipped modules connected over
Ethernet for data communications.
The abbreviation for File Transfer Protocol. This protocol is used to transfer data files over a network.
A label that is valid for all the program data when multiple program data are created in the project.
There are two types of global label: a module specific label (module label), which is generated
automatically by GX Works3, and an optional label, which can be created for any specified device.
The abbreviation for Internet Control Message Protocol. This protocol is used to exchange messages of
errors in an IP network or other information related to an Ethernet network.
A module that has functions other than input and output, such as an A/D converter module and D/A
converter module.
A label that represents a device in a given character string
The abbreviation for the MELSECNET/10 network system
The abbreviation for the MELSECNET/H network system
Devices used for communications using the MODBUS protocol.
A generic term for the protocols for using MODBUS protocol messages on a TCP/IP network.
A label that represents one of memory areas (I/O signals and buffer memory areas) specific to each
module in a given character string.
For the module used, GX Works3 automatically generates this label, which can be used as a global
label.
A generic term for the following modules:
• Ethernet interface module
• CC-Link IE Controller Network module
• Module on CC-Link IE Field Network
• MELSECNET/H network module
• MELSECNET/10 network module
• RnENCPU (network part)

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