140CPU21304 Schneider CPU Controller Module

140CPU21304 Schneider CPU Controller Module | New & Original Stock

Availability: 94 left in stock

Schneider 140CPU21304 Modicon Quantum CPU Controller Module The Schneider 140CPU21304, also cataloged as the 140CPU21304 CPU Controller Module, operates as...

SKU: 140CPU21304

Manufacturer: Schneider
Product No.: 140CPU21304
Product Type: CPU Processors
Product Origin: France
Payment:T/T, Western Union
Weight: 910g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Schneider 140CPU21304 Modicon Quantum CPU Controller Module

The Schneider 140CPU21304, also cataloged as the 140CPU21304 CPU Controller Module, operates as a dedicated hardware component for user program execution, I/O module coordination, and system communication within Modicon Quantum automation platform networks. The hardware features an integrated 32-bit mathematical processor running at a clock frequency of 20 MHz to process logic routines at a deterministic rate. The controller maintains dedicated memory segments, including 768 kB of total system memory with integrated Modbus and Modbus Plus communication interfaces to handle discrete and analog control topologies.

Hardware Specifications

Parameter	Specification
Model	140CPU21304
Brand	Schneider Electric
Origin	France
Weight	0.91 kg (2.00 lbs)
Dimensions	398 mm x 41 mm x 152 mm
Operating Temp	0 to 60 deg C
Storage Temp	-40 to 85 deg C
Power Consumption	250 mA maximum
Input Voltage	24 VDC
Bus Current Required	200 mA
Processor Type	32-bit with Math Co-Processor
Clock Frequency	20 MHz
User Memory Capacity	768 kB total (512 KB application RAM, 512 KB Flash)
Native Interfaces	Modbus, Modbus Plus ports
I/O Capacity Scaling	Up to 7 local racks and 31 remote drops
Configuration Format	Standard Modicon Quantum slot profile
Memory Retention	Lithium battery backup

Deterministic Network and Backplane Bus Communications

The Schneider 140EHC10500 high-speed counter utilizes deterministic backplane bus communication velocity licenses to execute ultra-low latency data transfers to the Modicon Quantum controller. The module maps register memory structures for precise 16-bit or 32-bit tracking to achieve synchronized control loop resolution.

To maintain structural timing across complex automation cells, this controller interfaces with Profinet / EtherNet/IP deterministic networks via dedicated communication modules. The system backplane manages internal data distribution at a high transfer velocity, eliminating processing bottlenecks between the 32-bit co-processor logic and downstream high-density I/O modules during peak data traffic loops.

Frequently Asked Questions

Q: What are the continuous backplane bus current limitations when updating firmware flash revisions?

A: The module requires 200 mA of internal backplane bus current during routine execution. When flashing firmware revisions via the communication interfaces, the current draw must not exceed the 250 mA max limit of the allocated power supply module slot.

Q: Is hot-swapping supported for the central processing module inside a live Quantum rack?

A: No. Removing or inserting the main CPU module while backplane power is active corrupts the logic runtime execution. Always isolate the 24 VDC input feed to the rack power supply prior to pulling the module.

Q: How does the controller handle program retention during extended external power outages?

A: The module employs an internal lithium battery to provide auxiliary power to the volatile application RAM. This battery backup configuration holds program code and variable tables when external voltage drops below operational thresholds.

Field Installation Guidelines

Verify backplane structural integrity and ensure the rack grounding bar links directly to a low-impedance earth path before module insertion.
Align the module chassis guides with the dedicated controller slot in the Modicon Quantum rack, applying firm pressure until the locking levers click home.
Terminate the Modbus Plus network trunk using approved coaxial cabling and secure the appropriate 75 Ohm terminating resistors at the physical end nodes of the segment.
Route the networking cables through separate wire ducts isolated from heavy current-carrying AC or DC motor lines to minimize induction noise.
Test the internal lithium battery charge voltage status prior to commissioning to guarantee logic retention upon the next scheduled power cycle.

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