Product Overview
As industrial networks evolved from proprietary fieldbuses to open standards, the demand for robust, deterministic communication grew. The Schneider Electric Modicon Quantum 140NOA62200C Interbus master module meets this need, offering reliable control in severe environments. Designed for local rack installations, this Interbus generation 4 master module uses twisted pair cabling to connect up to 20 meters between devices, ensuring stable data exchange in harsh factory floors.

Technical Specifications Breakdown
Key parameters for the 140NOA62200C are listed below for quick reference:
| Feature | Specification |
|---|---|
| Manufacturer | Schneider Electric |
| Product Type | Interbus master module |
| Product Line | Modicon Quantum |
| Format | Standard |
| Method of Access | Master |
| Cable Type | Twisted pair |
| Maximum Cable Distance | 20 m |
| Bus Current Requirement | 800 mA |
| Power Dissipation | 4 W |
| Ambient Temperature | 0 to 60 °C |
| Marking | CE |
| Standards | UL, CSA |
Industry Applications
This module excels in severe environments such as automotive assembly lines, chemical processing plants, and metalworking facilities. Its 800 mA bus current ensures reliable power distribution across remote I/O nodes, while the twisted pair cabling withstands electromagnetic interference common in heavy machinery. The 0 to 60 °C operating range covers most indoor industrial settings without requiring additional cooling.

Installation & Setup Guidance
Mount the module in a local rack compatible with Modicon Quantum. Use twisted pair cable with proper shielding to maintain signal integrity over the 20 m maximum distance. Configure the Interbus master using Concept or ProWORX 32 software version V 2.5 SR2. Ensure the bus current does not exceed 800 mA by calculating the total draw of connected slaves.
Maintenance & Reliability
Inspect the module quarterly for dust accumulation on the SUB-D 9 connectors and verify that all LED indicators (ACTIVE, RUN, IS-B RUN) show normal operation. The module dissipates only 4 W, reducing heat buildup in the enclosure. For storage, keep ambient temperature between -40 and 85 °C and relative humidity below 95% without condensation.
Compatibility & Integration
The 140NOA62200C supports Interbus RS485 isolated at 500 kbit/s per DIN 66020. It is compatible with Quantum CPUs 140CPU53414B, 140CPU43412A, and 140CPU11303. Up to six 140CPU11303 units can be used on a local Interbus rack, or two of the other CPU types. The dual-port RAM and multiple memory banks (128 kB + 256 kB firmware EPROM, 2 kB dual-port RAM, 256 kB + 32 kB data RAM, 64 kB Interbus command sequence EEPROM, 64 kB multi-port RAM) ensure robust data handling.
Selection Guide & Purchasing Advice
When selecting a replacement or new Interbus master module, verify your rack type and CPU compatibility. The 140NOA62200C is a standard format module for local racks. SpareTechPLC stocks this module and can confirm current lifecycle status and availability before ordering.
Troubleshooting & Common Issues
If the red F (fault) LED is lit, check for initialization faults with the DEA 202 or memory errors. A yellow LED indicates one or more bus segments are shut down—inspect cable connections and terminations. For communication issues, verify the twisted pair cable distance does not exceed 20 m and that the bus current remains within 800 mA.