140CHS11000
Schneider Electric
Overview
The Schneider Electric 140CHS11000 is a hot-standby module for the Modicon Quantum platform, used to build high-availability control systems where a backup processor takes over automatically if the primary fails. It is compatible with all legacy 140CPU units that use the LL984 language, making it relevant to established Quantum installations.
The module draws 700 mA from the backplane and is substantially heavier than typical I/O at about 1.06 kg. It operates across 0–60 °C ambient, consistent with the Quantum family. Hot-standby architecture is a resilience measure for processes where unplanned downtime carries high cost or safety risk.
Application & Technical Notes
The 140CHS11000 is a redundancy component rather than an I/O module. In a Quantum hot-standby configuration, a primary and standby CPU run in lockstep (or with controlled synchronisation), and the 140CHS11000 supports the link that enables seamless transfer of control on failure. Compatibility with legacy 140CPU LL984 processors means it can retrofit availability into older systems.
Integration requires the appropriate companion CPUs, cabling and configuration for hot standby, planned according to Schneider Electric guidance. Because the module draws 700 mA and is heavier, confirm rack and backplane capacity and mechanical support. The availability benefit must be weighed against the added hardware and configuration complexity.
Maintenance & Diagnostics
Hot-standby modules like the 140CHS11000 are low-maintenance but central to availability, so their status should be actively monitored. During commissioning, verify the standby transfer (switchover) works as designed and that both processors are healthy. Keep the rack within 0–60 °C and ensure ventilation and mechanical support suit the 1.06 kg module.
De-energise and follow lockout practice before insertion or removal. Periodically test the standby transfer in a controlled way, keep spare hardware where downtime is critical, and store spares within the rated storage range. Maintain documentation of the redundancy configuration for fault diagnosis.
Sourcing & Procurement
The 140CHS11000 is a hot-standby module for Quantum systems using legacy 140CPU LL984 processors; confirm compatibility with your specific CPU and hot-standby architecture before ordering. Genuine Schneider Electric modules are recommended because redundancy integrity and certification depend on the authentic, approved part.
For long-lead or legacy items, refurbished genuine units from a reputable supplier may be an option; validate the seller and retain serial traceability. Buy from authorised distributors where possible, and keep the manufacturer part number on record for audit and warranty.
Frequently Asked Questions
What is the 140CHS11000 used for?
It is a hot-standby module that enables high-availability Quantum control systems with automatic failover to a backup processor.
Which CPUs is it compatible with?
All legacy 140CPU units that use the LL984 language, making it relevant to established Quantum installations.
How much backplane current does it draw?
Approximately 700 mA, and the module weighs about 1.06 kg, heavier than typical I/O modules.
What should I verify at commissioning?
Confirm the standby transfer (switchover) functions as designed and that both primary and standby processors are healthy.
What is the operating temperature range?
0 to 60 °C ambient, consistent with the broader Quantum I/O family.
Specifications
Modicon Quantum - hot standby module
Main
| Range of Product | Modicon Quantum automation platform Product or Component Type Hot standby module |
|---|---|
| Software designation | Concept >= V2.0 ProWORX 32 NxT V2.0 |
Complementary
| Product Compatibility | All legacy 140CPU with LL984 language All 140CPU43412A/534 with IEC language Input/output type 800 Series Sy/Max (remote I/O only) Quantum |
|---|---|
| Transmission Rate | 10 Mbit/s |
| Transmission support medium | Fiber optic 9.8 ft (3 m) |
| Switching time | 13...48 ms |
| Electrical connection | 1 connector RJ45 for fiber optic receiver 1 connector RJ45 for fiber optic transmitter |
| Local signalling | 1 LED (amber) for module in standby 1 LED (green) for communication with I/O module 1 LED (green) for control process 1 LED (green) for ready module 1 LED (red) for communication error |
| Bus current requirement | 700 mA |
| Module format | Standard |
| Net Weight | 2.34 lb(US) (1.06 kg) |
Environment
| Note | RFI immunity 27…1000 MHz 9.1 V/m (10 V/m) IEC 60801-3 |
|---|---|
| Resistance to electrostatic discharge | 4 kV contact 8 kV air |
| Ambient air temperature for operation | 32…140 °F (0…60 °C) |
| Ambient Air Temperature for Storage | -40…185 °F (-40…85 °C) |
| Relative Humidity | 95 % without condensation |
| Operating altitude | <= 16404.2 ft (5000 m) |
Ordering and shipping details
| Category | US1PC2118150 |
|---|---|
| Discount Schedule | PC21 GTIN 3595861133822 |
| Returnability | No |
| Country of origin | FR |
Packing Units
| Unit Type of Package 1 | PCE |
|---|---|
| Nbr. of units in pkg. | 1 |
| Package 1 Height | 1.97 in (5 cm) |
| Package 1 Width | 6.50 in (16.5 cm) |
| Package 1 Length | 12.20 in (31 cm) |
| Package weight(Lbs) | 17.6 oz (500 g) |
| Unit Type of Package 2 | S03 |
| Number of Units in Package 2 | 7 |
| Package 2 Height | 11.81 in (30 cm) |
| Package 2 Width | 11.81 in (30 cm) |
| Package 2 Length | 15.75 in (40 cm) |
| Package 2 Weight | 8.852 lb(US) (4.015 kg) |
Reproduced from the manufacturer's published data. Values marked "Not available" are absent from the source document.