Product Overview
The Schneider Electric 140QUCMOE is a universal communications module built for the Modicon Quantum platform. It gives your control system one RJ45 Ethernet port and one serial port supporting RS-232 and RS-485. Instead of replacing an entire rack to gain network access, you add this single module and connect.
That matters when downtime costs more than hardware. A ready-to-ship spare like the 140QUCMOE keeps a Quantum line talking to SCADA, HMIs, and plant networks without a full platform migration.
Technical Specifications
| Specification | Value |
|---|---|
| Manufacturer | Schneider Electric |
| Product Type | Universal Communications Module |
| Product Line | Modicon Quantum |
| Ports | 1x RJ45 Ethernet, 1x Serial (RS-232/485) |
| Baud Rate | Up to 115.2 kbps |
| Protocols | Modbus, Modbus Plus, TCP/IP, ASCII |
| Data Buffer | 2 MB SRAM |
| Mounting Type | Rack-mounted |
| Power Supply | 5 V DC (from rack) |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity Tolerance | 5% to 95% non-condensing |
| Compliance | UL, CSA, CE |
What the Key Specs Mean for Your Budget
The dual-port design cuts cost in a practical way. One module covers both Ethernet and serial devices, so you avoid buying two separate interface cards and the rack slots they would occupy.
A 2 MB SRAM buffer absorbs communication bursts before they reach the processor. In high-traffic oil and gas applications, that reduces retries and message loss, which protects process uptime.
Drawing 5 V DC directly from the rack simplifies power planning. No external supply means no extra wiring, no additional cabinet space, and no separate power component to fail.
Where the 140QUCMOE Fits
Oil and Gas SCADA Links
Remote well sites and pipeline stations often run legacy serial instruments alongside modern Ethernet networks. The 140QUCMOE bridges both through one Quantum rack, so you connect flow computers and RTUs without a protocol converter for every device.
Water and Wastewater Control
Modbus and Modbus Plus support keeps pump stations integrated with existing master systems. The wide humidity tolerance of 5% to 95% non-condensing suits wet well and treatment room environments.
Manufacturing Data Collection
ASCII and TCP/IP support lets the module feed production data to MES or historian platforms. That visibility supports faster decisions on throughput and energy use.
Integration Notes
Wiring into Ethernet or fieldbus networks may require an external gateway or connection module. Confirm cable types, connectors, and any gateway needs with your supplier before installation.
Because the module is rack-mounted, verify slot allocation and backplane compatibility in your existing Quantum chassis. The 0°C to 60°C operating range covers most climate-controlled control rooms and many field cabinets.
Maintenance and Reliability
Inspect the module periodically for secure seating, clean connections, and adequate cabinet ventilation. Keep ambient conditions within the rated range and follow the manufacturer’s safety manual for all service work.
Compliance with UL, CSA, and CE supports use across North American and European installations, which simplifies procurement for multi-site operations.
Selection Checklist
Before ordering, confirm your rack series, required protocol set, and port count. If you run mixed serial and Ethernet devices, this single module often replaces two separate cards, lowering both purchase and maintenance cost.
Contact Oil AutoTech today for pricing and availability. Spares when you need them, with hands-on technical selection help.
Please verify current lifecycle status and availability with Oil AutoTech before ordering.
