Mitsubishi Electric MELSEC-L Series - Terms

16
TERMS
Unless otherwise specified, this manual uses the following terms.
Term Description
ARP
The abbreviation for Address Resolution Protocol. This protocol is used to obtain the MAC address
of Ethernet from an IP address.
Buffer memory
A memory in an intelligent function module, where data (such as setting values and monitoring
values) exchanged with a CPU module are stored
Buffer memory address
An address that indicates the storage location of data assigned to the buffer memory in an
intelligent function module
BUFRCV The abbreviation for ZP.BUFRCV
BUFRCVS The abbreviation for Z.BUFRCVS
BUFSND The abbreviation for ZP.BUFSND
C24 Another term for the L series serial communication module
CLOSE The abbreviation for ZP.CLOSE
Dedicated instruction An instruction that simplifies programming for using functions of intelligent function modules
Device A device (X, Y, M, D, or others) in a CPU module
DNS
The abbreviation for Domain Name System. This system is mainly used to convert host names on
the Internet or domain names used for e-mails to IP addresses.
E71 Another term for the LJ71E71-100
E71-connected station The abbreviation for the station where the E71 is connected
ECPRTCL The abbreviation for GP.ECPRTCL
ERRCLR The abbreviation for ZP.ERRCLR
ERRRD The abbreviation for ZP.ERRRD
FTP
The abbreviation for File Transfer Protocol. This protocol is used to transfer data files over a
network.
GX Developer
The product name of the software package for the MELSEC programmable controllers
GX Works2
HTTP
The abbreviation for Hyper Text Transfer Protocol. This protocol is used to send and receive
content, such as HTML files, between a Web browser and a Web server.
ICMP
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.
Intelligent function module
A module that has functions other than an input or output, such as an A/D converter module and
D/A converter module
IP The abbreviation for Internet Protocol
MAC address
A unique identifier assigned to each external device on a network. This address is also known as
an Ethernet hardware address.
MC protocol
The abbreviation for MELSEC Communication Protocol. This protocol is used to access MC
protocol supporting modules, such as the C24 and E71, or programmable controllers connected to
MC protocol supporting modules from external devices.
MELSECNET/10 The abbreviation for a MELSECNET/10 network system
MELSECNET/H The abbreviation for a MELSECNET/H network system
MELSECNET/H remote I/O station A generic term for the QJ72LP25-25, QJ72LP25G, and QJ72BR15
MRECV The abbreviation for ZP.MRECV
MSEND The abbreviation for ZP.MSEND
MX Component The abbreviation for MX Component (SW0D5C-ACT-E or later)
OPEN The abbreviation for ZP.OPEN
POP3
The abbreviation for Post Office Protocol Ver.3. This protocol is used to transfer e-mails from a
mail server to a local computer.