Terms - Mitsubishi Electric CC-Link IE Basic Reference Manual

TERMS

Unless otherwise specified, this manual uses the following terms.
Term
Buffer memory
Cyclic transmission
Disconnection
Label
Link device
Link refresh
Link scan (link scan time)
Master station
RAS
Reference response time
Reserved station
Return
Slave station
SLMP
Subnet mask
User device
4
Description
Memory in a module for storing data such as setting values and monitored values
A function by which data are periodically exchanged among stations on the same network using link
devices on CC-Link IE Field Network Basic
A process of stopping data link if a data link error occurs
A label that represents a device in a given character string
A device (RX, RY, RWr, or RWw) in a CPU module for the purpose of communicating with slave stations
Automatic data transfer between a user device and a link device
The master station of CC-Link IE Field Network Basic sends requests to all slave stations. After
receiving responses from all the slave stations, the master station sends next requests. The time taken
from when requests are sent to when the next requests are started to send by the master station.
A station that controls the entire CC-Link IE Field Network Basic. Only one master station can be used
in a network.
The abbreviation for Reliability, Availability, and Serviceability. This term refers to usability of automated
equipment.
The time taken from when a slave station of CC-Link IE Field Network Basic has received a request
from the master station to when the slave station send a response to the master station.
A station reserved for future use. This station is not actually connected on CC-Link IE Field Network
Basic, but counted as a connected station
A process of restarting data link when a station recovers from an error
A station that performs cyclic transmission with the master station on CC-Link IE Field Network Basic. I/
O signals in units of bits and I/O data in units of words are exchanged.
The abbreviation for Seamless Message Protocol. This protocol is used to access an SLMP-compatible
device or a programmable controller connected to an SLMP-compatible device from an external device.
A number used to logically divide one network into multiple subnetworks and manage them easily. The
following Ethernet network systems can be configured:
• A small-scale Ethernet network system in which multiple network devices are connected
• A medium- or large-scale network system in which multiple small-scale network systems are
connected via routers or other network communication devices
A device (X, Y, M, D, or others) in a CPU module