Microcontroller

ALPHA

I/O points (addresses): 6-20
Graphical "function block" style programming with drag and drop icons.
Expanded memory to 200 FBS.
Built-in LCD screen for programming panel or operator interface functions.
8 Amp relay output.
Dual function DC discrete/analog input versions (an input can be "on/off" or 8-bit,         0-10 VDC).
Y2K compliant real-time clock with 4 digit year.

ALPHA XL

Comprehensive range of ready-to-use functions
Large program memory for up to 200 function blocks
LC display with 8 function keys and HMI functionality
Integrated calendar/clock function supporting
      up to 1,200 on/off commands
ALPHA 20 and ALPHA XL with communication capabilities        for the AS-i field bus

ALPHA XL NEW!

Compact systems

MELSEC-FX1S

I/O points (addresses): 10-34

Integrated serial interface for communication between PC and HMI

2000 steps EEPROM (internal)

Cykle period 0,55 - 0,7µs/log.instruction

Integrated real-time clock

1 phase 6 input for max. 60kHz, 2 phases: 2 inputs for max. 30 kHz

MELSEC-FX1N

I/O points (addresses): 14-128 (+4 optional)

8000 steps EEPROM (internal), EEPROM/EPROM cassettes(optional)

Maximum of 2 special function modules

All DC models with variable voltage from 12 up to 24 V

Open Network Connectivity: Modules for Profibus DP, Profibus DP I/O, DeviceNet, AS-i and CC-Link.

MELSEC-FX2N

I/O points (addresses): 16-256

Maximum of 8 special function modules

8K * steps RAM (internal), 16K steps RAM/EEPROM cassettes

Cykle period 0.08 µs/log.instruction

Better Process Control: New, auto-tuning PID.

* 8K= 8Kilo=8x1024

MELSEC-FX2N (C)

I/O points (addresses): 16-256

Maximum of 4 special function modules

Conventional panels require several layers of wiring, termination, and labeling. The FX2NC uses high-density cables that connect the PLC directly to the field terminals by locking IDC connectors

CPU virtually same as FXN; 32K program memory, 8K data memory, 80 nanosecond execution, embedded twin axis motion control, floating point math, and auto-tuning PID control, etc.

The real time clock feature is optional for FX2NnC CPUs

Modular systems

MELSEC AnSH/QnAS – High-End Power in a Compact Format

The modular AnSH/QnAS models can be configured precisely for a wide range of
different control tasks. You can choose from a range of finely graduated
CPUs and over 60 different application modules. Despite this power and
versatility, the AnSH/QnAS system takes up very little cabinet space. It can pack a full 160 I/Os into an area measuring just 32.5 x 13cm, guaranteeing extremely costeffective
automation solutions.

Comprehensive communication and
networking

The network capabilities of the AnSH/QnAS are equally impressive. Support for Profibus, Ethernet, DeviceNet
and CC-Link are standard, as is support for the Mitsubishi networks ELSECNET/B and MELSECNET/10. The AnSH/QnAS series is a universal controller for a very
broad range of applications and needs.

Flexible memory expansion options

Extremely short response times predestine the QnAS for complex automation
solutions. Program memory for up to 60K of PLC program steps is standard and a
PCMCIA slot can accommodate up to 2MB of additional RAM, providing the
capacity needed by demanding applications, including extensive recipe management systems.

Performance spectrum

You can configure complex positioning applications controlling up to 32 axes per
module with linear or circular interpolation. S-shaped acceleration and deceleration
2,048 relays and data registers are reserved for diagnostics functions.
Ramps go easy on your valuable machines. The AnSH can also control up to 96
stepping motors. That’s the kind of all-round flexibility that modern factories need.

Communications performance

The high-speed module rack of the QnAS system makes it possible for the network
modules to provide extremely fast data transfer rates between the controller and
the network. It takes less than 1 second to transfer a 50KB recipe from the host computer to the controller via an Ethernet link – the PLC program execution cycle
continues normally during the transfer, of course. A comprehensive range of
marine approvals also makes this controller an excellent choice for ship automation
and offshore applications.

MELSEC QnA/Q4AR – Redundant Architecture for Full Process Continuity

Five finely graduated CPUs are available,with 28-124K steps of program memory and processing speeds of 0.075-0.2µs per logical instruction.The system grows with your needs: Upto 64 expansion slots on eight racks provide ample configuration options. A large number of special function modules with their own processors are available for the configuration of perfectly-tailored systems for every application, including temperature logging modules,positioningmodules with linear and circular interpolation, high-speed counters, interfaces and network modules.

Comprehensive automatic diagnostics

The QnA/Q4AR has 2,048 relays and data registers that are exclusively reserved for diagnostics functions. The operating status of all controller components are automatically stored in these relays and registers.

Redundant controller hardware

The Q4AR provides the security needed for mission-critical processes that must be protected against controller failure. In normal operation the active CPU executes the control program while the standby CPU
continuously tracks and copies the process data. If the active CPU fails as the result of an abnormal condition etc. the standby CPU instantly cuts in and assumes
control, on the basis of the last valid process image.

Maintenance during process execution

Maintenance work can be carried out on the main module
rack without interrupting active. The redundant controller architecture of Q4AR provides maximum control
reliability for critical processes. Active switching to the standby CPU.

Redundant network technology

Remote I/Os are controlled via the 10/20Mbaud MELSECNET/ 10 network. If abnormal behaviour is registered in the master CPU the standby CPU
automatically cuts in and takes over control of the remote I/Os.

Automatic program synchronisation

The programs of the master and standby CPUs must always be identical. If program changes are performed online in the active CPU the program of the standby
is synchronised automatically.

MELSEC System Q – The System Platform for Automation

Multiprocessor Power for Tomorrow’s Challenges

Ever more demanding manufacturing systems, new forms of
communication and the need to integrate new technologies are
pushing the performance limits of conventional PLC systems.
Mitsubishi Electric’s response to these growing challenges is a
new high-end controller with advanced multi-processor technology:
MELSEC SystemQ! In each system up to four separate
CPUs share the processing load of control, motion control,
PC and communications tasks. This brilliantly simple solution,
introducing the concept of teamwork to controllers, brings
a drastic boost in system availability and performance.

Fast, flexible and servicefriendly

With its unique design concept and outstanding features
MELSEC SystemQ can rightfully claim to be the controller platformof
the future.
All program cycle periods continuously adjustable from
     0.5-2.000 ms in 0.5 ms steps
Self-diagnostics with error history stored in the CPU
Memory expansion options up to 32MB
Support for remote diagnostics and programming (modem, Internet,      intranet)
Monitoring of special function modules, online system analysis on      screen
All CPUs fitted with integrated Flash ROM
Utility tools enable simple configuration and functional tests of nalog      and special function modules
Programmable with IEC 1131.3/EN 61131-3 compatible software or      (via a PC CPU) in high-level languages like C++ or Visual Basic
Soft PLC available for the PC CPUs

The extremely compact design of the MELSEC System Q saves valuable space in your switchgear cabinet. The wide
choice of CPU units makes it possible to configure your systems precisely for your application needs. Thanks
to the platform-based architecture you can reconfigure at any time without changing the remaining components. All in all a very solid investment with great potential.