Specifications

Q series network environment connecting to the future for more freedom.
Seamless integration
of the network over all layers
Q series support
for open networking.
Seamless communication
<Between factory departments>
Enterprise level network
<Within factory>
Control level network
<Within line>
Device level network
<Within panel and devices>
Sensor level network
Q series provides extensive support for applications
requiring a diverse range of 3rd party devices on
the same network. An example is the open CC-
Link device network, which originated from Japan
through Mitsubishi, and is now administered by the
CC-Link Partner Association (CLPA). CC-Link is a
SEMI certified network, with many products
available from over 500 different partner
companies, with over 1.5 million installed nodes.
Q series combines enterprise, control, and device level networks
together through Ethernet, MELSECNET/H, and CC-Link to
allow easy information access, no matter what level it resides on
the network hierarchy. It is possible to “drill down” from a high
level Ethernet down through multiple network layers, to program
the PLC just by having GX Developer installed on the PC.
Ethernet represents the top layer of the network
hierarchy used to transfer information around a
plant and between different departments. Use this
to establish a link to SCADA and other production
and quality control management systems.
MELSECNET/H is one step down from Ethernet
and allows communication between controllers on
a line within a plant department. MELSECNET/H
offers high performance, fault tolerant,
deterministic communications for line interlocking
and synchronization between different processes.
The primary reason for a device level network is to
link a controller to numerous different devices to
reduce wiring costs while adding additional
benefits such as improved diagnostic capability.
Together with SEMI certification, CC-Link provides
an open device level network with enhanced
flexibility in system design and configuration.
At the lowest hierarchial network level, sensor
level networks can still reduce wiring costs inside
panels between simple discrete devices such as
push-buttons and some sensors. Q series fully
supports this with the sensor level version of CC-
Link, CC-Link/LT. This new addition to the CC-Link
family includes tremendous flexibility and cost
savings through its innovative connection
technology, which does not require cutting/stripping
of the network cable to make connections.
¡ 100base-T connections provide easy integration
into the existing plant LAN infrastructure
¡Simple set-up via standard configuration
tools in GX Developer
¡ Maximum 25Mbps high-speed communication
¡Large capacity link device: 16,384 points
each for bits and words
¡Improved reliability using duplex optical fiber
loop
¡ Maximum 10Mbps high-speed communication
¡ Link device remote I/O points: 8192
¡Integrate other 3rd party manufacturers into
the Q series system
¡Easy connections with dedicated connectors
¡Use I/O points effectively by incorporating
number of points mode (4 points, 8 points, 16
points).
¡The maximum number of link points is 1024
points in the 16-point mode.
Event Interrupt
Some network and intelligent function modules include an
event interrupt function that can interrupt the high
performance QCPU program. With this function, the CPU
can rapidly respond to an event that occurs asynchronously
with the program scan of the PLC, e.g. data receiving from
a network or value compare of a high-speed counter.
Remote password
The High-Performance Model QCPU includes a remote
password function to provide additional security over
remote access. The remote password can be changed or
deleted as from within the parameters.
Network diagnostics
GX Developer includes extensive built-in diagnostic tools for Ethernet,
MELSECNET/H, CC-Link, and CC-Link/LT. Refer to page 21 for details.
External power supply input capability
Data link can be maintained even if the PLC power fails
by using the QJ71LP21S-25 module with external power
supply input for MELSECNET/H.
MELSECNET/H PC interface cards
Q series provides the capability to include
generic PCs on the MELSECNET/H
network via a wide range of PCI interface
cards. The software drivers included with
these cards allow system integration of 3rd
party systems, while also maintaining
compatibility with existing MELSECNET/10
installations. Including extensive RAS
functions for error detection.
MELSECNET/H Remote I/O Network
MELSECNET/H offers the capability to locate remote bases
containing Q series I/O modules on a 25Mbit control level network.
The key benefit of this is that complex distributed I/O systems can be
built using the same I/O modules as the controller itself. Hence
systems that need more than distributed I/O blocks on a network can
be addressed with Q Series. Any other station on the network can be
accessed from each remote I/O station. In addition, by incorporating
the process CPU, redundant remote I/O systems can be realized by
using MELSECNET/H master and standby master stations.
MELSECNET/H
interface card
(PCI BUS)
Q80BD-J71LP21-25
QJ71LP21-25
QJ71LP21-25
QJ72LP25-25
QJ72LP25-25
QJ72LP25-25
Remote
master
QJ71LP21-25 QJ71LP21-25
GX Developer
Enterprise level network
Control level network
Device level network
Sensor level network