Definitions Of Terminology - Mitsubishi Electric MELSEC Q Series User Manual

DEFINITIONS OF TERMINOLOGY

Term
ACK
Application Trigger
Class1 Tag communication
Class3 Tag communication
Consumer Tag
DHCP
Ethernet address
(MAC address)
Originator
Producer Tag
RPI
Definitions of the terms used in this manual are explained below.
ACK (an abbreviation for Acknowledgement) is a message indicating successful data
reception, which is sent from receiving device (destination) back to the sending device (source).
The trigger used to send/receive data at any given timing.
A communication method by which cyclic data transmission is performed between Producer
(Producer Tag) and Consumer (Consumer Tag).
( Section 4.2.1 Class1 Tag communication)
A communication method using read or write request.
( Section 4.2.2 Class3 Tag communication)
Tag used for Class1 Tag communication (
Data are sent from Producer Tag to Consumer Tag.
Producer Tag
DHCP (an abbreviation for Dynamic Host Configuration Protocol) is a protocol, which
automatically assigns parameters such as IP addresses to the devices connected to the
network.
A unique address used to distinguish the target device from another in a network.
MAC is an abbreviation for Media Access Control.
The Ethernet address (MAC address) of the EtherNet/IP module can be checked in either of the
following.
•MAC ADD field on the rating plate
Buffer memory of the EtherNet/IP module (
•
Originator is a device that sends a request for establishing a connection on the EtherNet/IP
network.
Target is a device that receives a connection request from Originator.
Originator
(Sending connection request)
in this section Consumer Tag
The abbreviation for Requested Packet Interval, indicating the time interval at which Target
sends data to Originator.
(For Class1 Tag communication, this applies to the time interval from Producer Tag to
Consumer Tag.)
Description
Section 4.2.1 Class1 Tag communication)
Data flow
(Class1 Tag communication)
Section 3.3.2 Setting status)
(Receiving connection request)
Connection
Consumer Tag
Target
A
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