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Phone: +86 16626708626Description
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | Modicon Quantum hot standby module |
| Redundancy Function | Hot standby control and remote I/O redundancy |
| Compatible Controllers | 140CPU43412A/534 with IEC language; legacy 140CPU controllers with LL984 |
| Remote I/O Compatibility | Quantum 800 Series and Sy/Max remote I/O |
| Software Compatibility | Concept version 2.0 or higher; ProWORX 32 NxT version 2.0 |
| Transmission Rate | 10 Mbit/s |
| Transmission Medium | Fiber optic, 3 m connection |
| Fiber Optic Connections | One transmitter connector; one receiver connector |
| Switching Time | 13–48 ms |
| Local Indicators | Red communication error; green ready; green control process; green I/O communication; amber standby |
| Bus Current Requirement | 700 mA |
| Module Format | Standard Quantum module |
| Operating Temperature | 0 to 60 °C |
| Storage Temperature | −40 to +85 °C |
| Relative Humidity | 95% without condensation |
| Operating Altitude | Up to 5,000 m |
| RFI Immunity | 27–1,000 MHz, 10 V/m according to IEC 60801-3 |
| ESD Immunity | 8 kV air discharge; 4 kV contact discharge |
| Weight | Approximately 1.06 kg |
Schneider Electric lists the 140CHS11000 as discontinued as of September 27, 2024, with no replacement shown on the U.S. product page. Verify controller compatibility, software version, fiber-optic hardware, and system architecture before treating surplus stock as a suitable replacement.
Product Introduction
The Schneider Electric 140CHS11000 is a Modicon Quantum hot standby module for redundant PLC control and remote I/O communication. It supports legacy 140CPU controllers and 140CPU43412A/534 controllers, using a 10 Mbps fiber-optic link to synchronize or switch the standby system.
The module provides status LEDs for readiness, control process, I/O communication, standby state, and communication faults. Its documented switching time is 13–48 ms. Because Schneider Electric has discontinued the unit without listing a direct replacement, verify the complete Quantum redundancy configuration before ordering.
140CHS11000
140CHS11000
140CHS11000
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to This Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| Module has no green Ready LED | Rack power, backplane, or module seating problem | ❌ Low to medium | Measure the Quantum rack supply and inspect the module seating and adjacent rack indicators | Check rack power and the backplane before replacing the module |
| Red Communication Error LED is on | Fiber link failure, incorrect port connection, or standby configuration fault | ✅ High | Inspect both fiber connectors, verify transmitter-to-receiver routing, and review controller diagnostics | Clean and reseat the fiber connectors; replace the fiber cable before the module |
| Amber Standby LED remains on | Normal standby state or failure to assume control | ✅ Medium | Compare the active/standby indications on both Quantum controllers and inspect hot standby diagnostics | Confirm whether the state is expected before changing hardware |
| Standby system does not take control | Controller mismatch, invalid configuration, or synchronization failure | ✅ High | Verify controller models, software versions, program checksums, and standby status LEDs | Correct the configuration and controller pairing; replace the module only after isolation |
| Switchover takes too long | Communication degradation, overloaded system, or incorrect redundancy setup | ✅ Medium | Review event logs and measure the fiber link condition; confirm the documented 13–48 ms expectation | Investigate the fiber path and controller load before replacing the module |
| Remote I/O communication is lost | Fiber transmitter/receiver path or remote I/O configuration fault | ✅ High | Check the green I/O communication indicator and test the fiber path with approved equipment | Verify fiber routing, connectors, and remote I/O settings |
| Both controllers appear healthy but no redundancy | Firmware/software incompatibility or unsupported CPU | ✅ High | Confirm Concept and ProWORX 32 NxT versions and verify the CPU model against the compatibility list | Do not install based only on physical fit; confirm supported architecture |
| Fault occurs after module replacement | Different hardware revision, wrong configuration, or incorrect fiber connection | ✅ High | Photograph and compare the original and replacement labels, ports, LEDs, and configuration | Restore the original configuration and verify every fiber connection |
| Controller runs normally but hot standby is unavailable | Module configuration disabled or standby system not synchronized | ✅ Medium | Check the redundancy enable settings and synchronization diagnostics in the programming software | Correct software configuration before replacing the module |
| Intermittent communication faults | Contaminated fiber ends, excessive bend radius, vibration, or damaged cable | ✅ High | Inspect and clean fiber ends; check cable routing and mechanical strain | Correct the fiber installation and monitor diagnostics before condemning the module |
The 140CHS11000 is a redundancy component, not a standard I/O card. Do not remove it from a live Quantum system without confirming the active controller, standby state, and site change-control procedure. If the fault persists, contact technical support with photos of both rack assemblies, module labels, LED states, fiber routing, controller models, software versions, and diagnostic logs.
Frequently Asked Questions (FAQ)
What does the Schneider Electric 140CHS11000 do?
It provides hot standby functionality for Modicon Quantum control systems. The module supports redundant controller operation and fiber-optic communication with compatible Quantum, 800 Series, and Sy/Max remote I/O configurations.
Which PLC CPUs are compatible with the 140CHS11000?
Documented compatibility includes 140CPU43412A/534 controllers using IEC language and legacy 140CPU controllers using LL984. Confirm the exact CPU suffix, firmware, programming software, and redundancy architecture before ordering.
Is the 140CHS11000 still manufactured?
Schneider Electric’s U.S. product page lists the module as discontinued on September 27, 2024, and states that no replacement is available. Remaining supply may come from New Surplus, opened stock, or refurbished/tested inventory.
Is it a direct replacement for any current Schneider module?
No direct replacement is listed by Schneider Electric. A modernized system may require an architecture migration rather than a one-for-one module exchange. Do not substitute a current Modicon X80 or M340 component without an approved migration design.
Can I use ordinary Ethernet cable instead of the specified fiber connection?
Do not assume so. The documented interface uses separate fiber-optic transmitter and receiver connections at 10 Mbit/s. Verify the approved fiber type, connector arrangement, length, and optical budget in the applicable Quantum documentation before installation.
Will replacing the module erase the PLC program?
The PLC application is generally stored in the controller system, not in the 140CHS11000 itself. However, hot standby systems depend on matching controller programs, configuration, firmware, and synchronization status. Back up both controller projects and record the redundancy settings before removing the module.
Why is surplus stock cheaper than the original factory channel?
The unit may be discontinued inventory, New Surplus, opened stock, or refurbished and tested rather than current factory-distributed material. Require an explicit condition statement, current label photos, functional test details, warranty terms, and return conditions. For a redundancy module, also confirm that the seller tested the fiber communication and standby indicators—not only power-up.
