Mitsubishi QJ71MB91 User Manual

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Meanings and Definitions of Terms
The following explains the meanings and difinitions of the terms used in this
manual.
Product Configuration
The following indicates the product configuration of the QJ71MB91
MODBUS interface module.
Term Description
MODBUS protocol
Communication protocol developed for programmable controller by Schneider Electric SA.
MODBUS device Device used for communication using the MODBUS protocol
Sequence program
Programming system devised to make a contact type sequence compatible with the
programmable controller language as-is. Draw two vertical control buses and describe
contacts, etc.
between the buses to perform programming.
Device memory
Memory provided for the programmable controller CPU to record the data handled in
sequence program operation.
Listen only mode Mode detaching the slave station from the circuit.
Model Product name Quantity
QJ71MB91
QJ71MB91 MODBUS interface module
1
Terminal resistor 330 1/4 W (for RS-422 communication)
2
Terminal resistor 110 1/2 W (for RS-485 communication)
2
SW1D5C-QMBU-E GX Configurator-MB Version 1 (1-license product) (CD-ROM) 1
SW1D5C-QMBU-EA GX Configurator-MB Version 1 (Multiple-license product) (CD-ROM) 1

Mitsubishi QJ71MB91 Specifications

General

Brand	Mitsubishi
Model	QJ71MB91
Category	Controller
Language	English