Chapter1 Overview - Mitsubishi Electric Melsec Q Series User Manual

1
OVERVIEW

CHAPTER1 OVERVIEW

This manual explains the specifications, functions, procedures before system operation,
and troubleshooting for the QJ71PB92V PROFIBUS-DP master module (hereinafter
referred to as "QJ71PB92V").
The QJ71PB92V is used for connecting MELSEC-Q Series programmable controllers to
PROFIBUS-DP.
The QJ71PB92V operates as a DP-Master (Class 1) on PROFIBUS-DP networks.
Single CPU system
DP-Master (Class 1)(QJ71PB92V)
Bus terminator
Redundant system
Control system
Bus terminator
1
- 1
DP-Slave (QJ71PB93D)
Redundant CPU (Q25PRHCPU)
DP-Master (Class 1) (QJ71PB92V)
Standby system
Tracking cable
DP-Slave
(QJ71PB93D)
Figure 1.1 PROFIBUS-DP Using QJ71PB92V
DP-Slave ( MELSEC-ST system)
S T 1 P S D S T 1 P D D
S T1 H- P B R U N E R R R U N E R R R U N E R R R U N E R R R U N E R R R U N E R R
S Y S 1 1 2 1 1 1 2 1
A U X . A U X
RELEASE
RESET
PROFIBUS I/F
DP-Slave
(MELSEC-ST System)
ST1PSD ST1PDD
ST1H-PB
RUN ERR RUN ERR RUN ERR RUN ERR RUN ERR RUN ERR
SYS
11 21 11 21
AUX . AUX
RELEASE
RESET
PROFIBUS I/F
DP-Slave
Bus terminator
DP-Slave
Bus terminator