Chapter7 Programming - Mitsubishi Electric Melsec Q Series User Manual

7
PROGRAMMING

CHAPTER7 PROGRAMMING

When applying the following program examples to the actual system, make sure to
examine the applicability of the program and confirm that it will not cause system control
problems.
The following lists the installation positions of the QJ71PB92V and corresponding program
examples shown in this chapter.
<Single CPU system configuration>
Power
supply
module
<Redundant system configuration (QJ71PB92V mounted on main base unit)>
Power
supply
module
Figure 7.1 Installation Positions of the QJ71PB92V and Corresponding Program Examples in This Chapter
7
- 1
POINT
When QJ71PB92Vs are mounted on extension base units in a redundant system,
dedicated instructions for the QJ71PB92V cannot be used.
1
QJ71
QCPU
PB92V
3
Redundant QJ71
CPU PB92V
Tracking cable
<MELSECNET/H remote I/O network configuration>
Remote master station
Remote I/O station
Power
QJ72LP25
supply
-25 PB92V
module
Power
Redundant
supply
CPU
module
Power
QJ71
supply
QCPU
LP21
module
MELSECNET/H
remote I/O network
2
QJ71
3
QJ71
Main base unit
PB92V
1
QJ71
PB92V