Terms - Mitsubishi Electric MELSEC iQ-R Series User Manual

TERMS

Unless otherwise specified, this manual uses the following terms.
Term
Backup mode
Buffer memory
Control system
Device
Diagnostic information
DP-Master
DP-Master (Class 1)
DP-Master (Class 2)
DP-Slave
Engineering tool
Extended diagnostic information
FDL address
Global label
Intelligent function module
Module label
Process CPU
Process CPU (redundant mode)
PROFIBUS-DPV0
PROFIBUS-DPV1
PROFIBUS-DPV2
Redundant system
Safety CPU
Separate mode
SIL2 Process CPU
Standby system
System A
System B
System switching
Description
A mode to continue operation in a redundant system. This mode can continue the operation by switching the systems from
the control system to the standby system when an error occurs in the control system.
Memory in an intelligent function module to store data such as setting values and monitor values.
For CPU modules, it refers to memory to store data such as setting values and monitor values of the Ethernet function, or
data used for data communication of the multiple CPU system function.
A system that controls a redundant system and performs network communications in a redundant system.
A memory of a CPU module to store data. Devices such as X, Y, M, D, and others are provided depending on the intended
use.
Diagnostic information of PROFIBUS-DP detected from the DP-Master or notified from a DP-Slave.
A device name when the RJ71PB91V is used as the DP-Master (Class 1).
This device exchanges I/O data with DP-Slaves.
A device (such as a general master station that uses a PROFIBUS-DP module) that exchanges I/O data with DP-Slaves.
A device (such as a personal computer) that communicates with DP-Slaves to check the FDL address setting and the
operating status.
This device is capable of performing start-up, maintenance, and diagnostics of the network as the DP-Master for network
control.
A device that exchanges I/O data with the DP-Master (Class 1)
A tool used for setting up programmable controllers, programming, debugging, and maintenance
Diagnostic information specific to each DP-Slave.
A DP-Slave notifies the DP-Master of an error detection.
The numbers assigned to a DP-Master and DP-Slaves.
The FDL address is set within the range from 0 to 125.
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.
A module that has functions other than an input or output, such as an A/D converter module and D/A converter module
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, the engineering tool automatically generates this label, which can be used as a global label.
A CPU module that performs process control and sequence control.
Process control function blocks and the online module change function can be executed.
This module is also used with a redundant function module as a pair and configures a redundant system.
A Process CPU operating in redundant mode.
A redundant system is configured with this CPU module. Process control function blocks and the online module change
function can be used even in this mode.
Basic version of PROFIBUS-DP. This version can be executed the I/O data exchange function or other functions.
A PROFIBUS-DP version for which the following functions have been added to the basic functionality of PROFIBUS-DPV0.
• Acyclic communication function
• Alarm function
Version of PROFIBUS-DP that contains the time control over DP-Slaves or other functions in addition to the functions of
PROFIBUS-DPV1.
A system consisting of two systems that have same configuration (CPU module, power supply module, network module,
and other modules). Even after an error occurs in one of the two system, the other system takes over the control of the
entire system.
 MELSEC iQ-R Module Configuration Manual
A module that performs both standard control and safety control and is used with a safety function module.
A mode for system maintenance in a redundant system. This mode can maintain a redundant system without stopping
control while the system is running.
This module is used with a SIL2 function module as a pair, and performs both standard control and safety control. This
module is also used with a redundant function module as a pair and configures a redundant system.
A backup system in a redundant system
A system that is set as system A to distinguish two systems in a redundant system.
It is used to distinguish connected two systems (system A and system B).
A system that is set as system B to distinguish two systems in a redundant system.
It is used to distinguish connected two systems (system A and system B).
A function which switches the systems between the control system and the standby system to continue operation of the
redundant system when a failure or an error occurs in the control system
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