Schneider Electric 140CHS21000 Modicon Quantum Hot Standby Kit The Schneider Electric 140CHS21000, also cataloged as the 140CHS21000 Hot Standby Kit,...
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Schneider Electric 140CHS21000 Modicon Quantum Hot Standby Kit
The Schneider Electric 140CHS21000, also cataloged as the 140CHS21000 Hot Standby Kit, operates as a dedicated hardware component for redundant controller switching within Modicon Quantum automation platforms. It executes deterministic data synchronization between primary and secondary processors via backplane bus communication.
Hardware Specifications
Parameter
Specification
Model Brand
Schneider Electric
Origin
France
Weight
2.56 lbs (1.16 kg)
Dimensions
Not specified
Operating Temp
0 degC to 60 degC
Power Consumption
15 W
Power Supply Voltage
24 VDC
Current
0.5 A
Transfer Time
< 100 ms
Status Indicators
LED for status, fault, diagnostics
Fieldbus Compatibility
Profibus DP, Modbus
Event Logging
Logs failure events
Certification
CE, UL, RoHS compliant
Mounting
DIN rail
Communication Ports
Ethernet, RS-232, RS-485
Protection
Overcurrent, overvoltage, short-circuit
Backplane Bus Communication Velocity and Firmware Flash Compatibility
The module utilizes the Modicon Quantum backplane bus to transfer process image tables with deterministic latency under 100 ms during redundancy switchover. Firmware flash compatibility aligns strictly with Quantum CPU firmware revisions; mismatched versions will inhibit synchronization. Licensing keys embedded in non-volatile memory validate authorized operation within the rack configuration.
Frequently Asked Questions
Q: Does the 140CHS21000 support hot-swapping without interrupting the secondary processor?
A: No. Hot-swap is not supported; power-down and controlled removal are required to prevent backplane communication errors.
Q: What is the maximum allowable voltage variation on the 24 VDC supply before triggering a fault?
A: The module tolerates 24 VDC +/-10% within operational temperature range. Exceeding this invokes overvoltage protection.
Q: Is cross-firmware loading permitted between different series of Quantum CPUs?
A: No. Firmware images must match both CPU series and redundancy kit hardware revision.
Field Installation Guidelines
Mount the module on a grounded DIN rail compatible with Quantum racks. Maintain separation from high-voltage wiring to minimize EMI coupling. Shielded twisted-pair cables must be used for all communication links, with shield termination at the rack ground point only. Verify backplane seating by applying even pressure until the locking levers engage fully. Confirm LED status sequence before enabling redundant operation.
