The 140CPU4321A is a high-performance central processing unit designed for the Schneider Electric Modicon Quantum automation platform. Engineered for demanding industrial control environments, this processor provides reliable logic execution and robust system management for complex automation tasks.
Features
Integrated 80486 processor running at a clock frequency of 66 MHz.
Equipped with 896 kB of internal RAM for application storage and data processing.
Supports efficient instruction execution with a cycle time of 0.1 to 0.5 ms for LL984.
Features a 250 ms watchdog timer to ensure system integrity and fault detection.
Capable of managing up to 63 distributed drops and 31 remote drops for scalable network architecture.
Compatible with ProWORX32 and Concept programming software environments.
Technical Specifications
Model Number
140CPU4321A
Processor
80486
Clock Frequency
66 MHz
Memory
896 kB Internal RAM
Bus Current Requirement
1250 mA
Clock Drift
+/- 8 s/day (0 to 60 degC)
Instruction Execution
0.1 - 0.5 ms (LL984)
Watchdog Timer
250 ms
Installation Guidelines
Ensure the CPU module is installed in the designated slot of the Modicon Quantum rack, ensuring proper seating of the backplane connectors.
Always power down the rack system before inserting or removing the CPU module to prevent electrical damage or data corruption.
Maintain adequate ventilation around the rack assembly to keep operating temperatures within the specified 0 to 60 degC range.
Verify that the backplane power supply is capable of handling the 1250 mA current draw required by this module.
Handle with standard ESD precautions to protect sensitive internal electronic components.
FAQ
What software is required to program this CPU? The 140CPU4321A is designed for use with Schneider Electric's ProWORX32 and Concept software suites.
What is the typical clock drift for this module? The internal clock drift is rated at approximately +/- 8 seconds per day when operating within the temperature range of 0 to 60 degC.
