PLCs, Power Supplies & Others

This Unity Hot Standby processor provides redundant control for Modicon Quantum PLC systems. It synchronizes with a secondary CPU for seamless failover operations. Therefore, this component suits critical applications requiring maximum system availability.

Physical Dimensions and Weight Specifications

The Schneider 140CPU67160C occupies one standard slot in the Quantum rack. Its housing measures 235 mm in depth for backplane connectivity. The module weighs approximately 0.68 kg for straightforward handling. Consequently, technicians can install this unit without additional rack reinforcement.

Interface Types and Connection Layout

The Schneider 140CPU67160C provides one Ethernet port for plant network connectivity. A second RS-232 port supports local programming and diagnostics. The front panel carries a dedicated fiber optic port for hot standby synchronization. Hence, users can configure redundant pairs with simple cabling.

Component Count and Onboard Memory

This hot standby processor contains one main board with a 32-bit RISC processor. The board holds 1 MB of battery-backed RAM for user programs. You will also find 4 MB of flash memory for non-volatile storage. An onboard real-time clock maintains schedule data during power cycles.

Energy Storage and Power Consumption

The Schneider 140CPU67160C draws 450 mA from the 5V backplane supply. A lithium battery retains RAM data for 1,000 days without external power. This battery maintains user programs during prolonged facility shutdowns. Therefore, the processor eliminates the need for frequent reprogramming after outages.

Hot Standby Performance and Switchover Time

The processor executes 0.12 microseconds per basic logic instruction. It synchronizes with the standby CPU every 10 milliseconds. Automatic switchover occurs within 50 milliseconds after a primary failure. This performance ensures uninterrupted control for critical processes.

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