Overview
The Schneider 140CPU42402 CPU Module provides high-performance control with Modbus Plus support and extensive I/O and logic capabilities for automation systems.
CPU and Memory
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Max IEC Program: 570 k
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SRAM Size: 2 M
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Ladder Logic Memory: 64 k
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Extended Registers: 64 k
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Bus Current Required: 1.8 A
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User Logic Capacity: 984 Ladder logic
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Discrete Registers: 64 k words
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Extended Registers: 57 k
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Reference Capacity: 96 k
I/O Capabilities
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Local I/O (Main Backplane): Maximum 64 inputs / 64 outputs
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Max I/O Racks: 2 (requires expander)
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Remote I/O: Maximum 64 inputs / 64 outputs per drop
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Max Remote Drops: 31
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Distributed I/O: Maximum 3 networks per system
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Network Words per Drop: 500 inputs / 500 outputs
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Words per Node: 30 inputs / 32 outputs
Performance
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Logic Solve Time: 0.1 ms / k to 0.5 ms / k
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Watchdog Timer: 250 ms (software adjustable)
Battery
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Type: 3 V Lithium
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Service Life: 1200 mAh
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Shelf Life: 10 years with 0.5% loss of capacity per year
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Load Current @ Power-off: Typical 7 μA, Maximum 210 μA
Interfaces
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Available Option Modules: 6
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Supported Interfaces per CPU: 6
