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Schneider PLC,PAC & other Controllers 

The Modicon Family of PLCs and programmable automation controllers (PACs) still stands for innovation, offering a full range of solutions to meet your automation needs. From HVAC/pumping to small automated machines to advanced machine automation, our robust offer of trusted automation solutions enhances machines and processes across industries.

Modicon M171 and M172 PLCs

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For HVAC and pumping applications
Maximize profitability and energy efficiency through scalable automation
control using the Modicon M171/ M172 logic controllers.


Available in three controller types:
• M171 — Optimized for simple and compact machines
• M171 — Performance for complex and BMS-connectable machines
• M172 — Performance for large and connected machines


Onboard and remote options; supports modbus serial, modbus TCP, BACnetTM
MS/TP, BACnet IP, and LonWorks

Modicon M221 PLC

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For small to medium automated machines
Modicon M221 and M221 logic controllers are designed for simple machines.
Available in two controller formats:
• Modicon M221 controllers offer excellent connection capacity and
customization options
• Modicon M221 book controllers offer very small dimensions and a wide
choice of connections
All programming, visualization, and commissioning are handled in just one
intuitive free tool.

Modicon M241 and M251 PLCs

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For advanced machine automation
Modicon M241 is designed for high-performance compact machines
incorporating speed and position control functions; available in 24 and 40 I/O
controller types.
Modicon M251 is well suited to control multiple machines leveraging dual
channel communications for handling both upstream and downstream
communications simultaneously; no onboard I/O and can utilize TM4 and TM3
modules for expansion.
Embedded functions minimize the machine cost:
• Ethernet with embedded web server function, CANopen®, Serial, and USB
programming port
• PID control, eight high-speed counter inputs and pulse train output for
motion control
• Execution speed: 22 ns/boolean instruction
–– RAM: 64 MB
• Program: 128 K boolean instructions, DualCore CPU
–– Flash memory: 128 MB

Modicon M340 PAC

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For small to medium process automation
The extremely powerful, rugged, and compact Modicon M340 PAC
provides cutting-edge features and high-end performance in a small to
mid-range applications.
• Open standards modbus, CANopen, modbus TCP, and Ethernet/IP
• Wide selection of discrete, analog, serial, and communication X80 modules
• Hardened hardware ratings for shock, vibration, and temperature
• Application backup and data storage using SD card technology
Onboard and remote options; supports modbus serial, modbus TCP, BACnet
MS/TP, BACnet IP, and LonWorks

Modicon M580 ePAC

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For medium to large process automation
Scalable from a single rack system to a plantwide architecture, the Modicon
M580 ePAC feature openness, flexibility, robustness, and sustainability.
Available in two controller formats:
• Ethernet backplane offering 10x communication speed
• Cybersecurity ready with Achilles Level 2 certification
• Advanced functions with high availability services (CCOTF, Hot standby,
redundant power supplies)
• Deterministic Ethernet communication with up to 1 ms I/O
time-stamping resolution
• Large memory capacity of 64 MB RAM and optional 4 GB storage SD card

Modicon X80 I/O modules

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For use with Modicon M340 PAC and M580 ePAC
Serving as a common platform for the Modicon M340 PACs and the Modicon
M580 ePACs, the Modicon X80 I/O modules offer a common platform, a much
smaller stock of spare parts needs, and significantly reduced maintenance/
training costs.
• Configuration choices of over 80+ discrete, analog, communication,
and expert I/O modules
• Expert modules provide for high speed counting, SSI encoder, and
time stamping
• RTU protocols available for telemetry applications
• Hot swap modules allow for online modifications without stopping controller
• Ruggedized for use in harsh environments or extended temperatures
• Compliance with international certifications (ATEX, IEC, UL, CSA, etc.)