Schneider Electric 490NAC0100 Industrial Ethernet Cable

Product Details

490NAC0100 Product Description

The Schneider Electric 490NAC0100 is a purpose-engineered industrial Ethernet communication cable designed to establish reliable, high-integrity data links between Modicon PLC controllers, remote I/O modules, HMI panels, SCADA gateways, and upper-level supervisory systems. Built to the Modbus TCP/IP protocol standard, this cable forms the physical backbone of a connected automation architecture — enabling real-time signal transmission, deterministic data exchange, and seamless integration across multi-vendor industrial networks.

In modern smart factory deployments, the integrity of the physical communication layer is as critical as the logic running on the controller. The 490NAC0100 addresses this requirement directly: its shielded construction and industrial-grade connectors ensure stable, low-latency data flow even in electrically noisy environments typical of manufacturing floors, process plants, and utility substations. Whether linking a Modicon M340 or M580 PLC to a distributed I/O rack, connecting a Schneider Electric BMXNOE0100 Ethernet communication module to a managed industrial switch, or bridging field devices to a Wonderware or Aveva SCADA platform, this cable delivers the signal fidelity that automation engineers depend on.

The 490NAC0100 sits at the heart of a layered industrial data flow architecture. At the field level, sensors and actuators — including Schneider Electric Advantys STB distributed I/O modules and Telemecanique OsiSense inductive proximity sensors — feed process signals into remote I/O racks. These racks communicate upstream via Modbus TCP/IP, with the 490NAC0100 providing the physical Ethernet link to the Modicon M340 or M580 PLC backplane.

Within the controller cabinet, the Schneider Electric BMXNOE0100 or BMXNOC0301 Ethernet communication module aggregates data from multiple I/O drops and forwards it across the plant network. A Hirschmann MICE or Schneider Electric ConneXium managed industrial Ethernet switch routes this traffic across VLANs, ensuring that time-critical control data is prioritized over general IT traffic. The 490NAC0100 cable connects these switch ports to the PLC communication modules with the signal integrity required for deterministic Modbus TCP/IP polling cycles.

At the supervisory layer, a Schneider Electric EcoStruxure Automation Expert or Aveva System Platform SCADA server subscribes to real-time data tags from the Modicon controller. HMI panels — such as the Schneider Electric Magelis HMIGTO series — display live process values, alarm states, and trend data sourced directly from the PLC via the same Ethernet backbone. Variable speed drives, including the Schneider Electric Altivar ATV320 series, expose their operational parameters (output frequency, motor current, fault codes) as Modbus TCP/IP registers, accessible through the same network segment that the 490NAC0100 supports.

For edge computing and IIoT integration, an edge gateway such as the Schneider Electric EcoStruxure Machine Advisor or a third-party Moxa MGate Modbus-to-MQTT gateway can tap into this Ethernet segment, forwarding aggregated production KPIs to cloud analytics platforms. The 490NAC0100 ensures that the physical layer supporting this entire data chain — from field signal to cloud dashboard — maintains the electrical integrity and connector reliability demanded by 24/7 industrial operation.

Many automation sites still operate with fragmented communication architectures: legacy serial Modbus RTU devices on one segment, newer Ethernet-based controllers on another, and no unified data path connecting them to SCADA or MES systems. The result is data silos, blind spots in production monitoring, and slow fault response times.

The 490NAC0100 directly addresses the Ethernet connectivity layer of this problem. By providing a certified, tested physical link between Modicon PLC Ethernet ports and the plant network infrastructure, it eliminates one of the most common sources of intermittent communication faults: poor-quality or uncertified patch cables that introduce packet loss, CRC errors, and unpredictable polling timeouts in Modbus TCP/IP networks.

When combined with a Schneider Electric BMXNOE0100 communication module and a properly configured ConneXium switch, the 490NAC0100 enables full network transparency: every field device, every I/O module, and every drive on the Modbus TCP/IP segment becomes visible to the SCADA historian. Alarm events are timestamped at the controller level and propagated in real time to the HMI and SCADA layers, enabling rapid fault diagnosis without requiring on-site personnel. Remote diagnostic tools — including Schneider Electric's EcoStruxure Control Expert online monitoring mode — can interrogate PLC memory, I/O status, and communication diagnostics over the same Ethernet path, reducing mean time to repair (MTTR) and supporting predictive maintenance workflows.

For sites planning network expansion, the 490NAC0100's compatibility with standard IEEE 802.3 Ethernet infrastructure means that adding new PLC nodes, remote I/O drops, or HMI stations requires no proprietary cabling — only standard industrial Ethernet switches and additional 490NAC-series cables to extend the network segment.

Q1: Is the 490NAC0100 compatible with Modbus TCP/IP polling at high scan rates without introducing communication latency?Yes. The 490NAC0100 supports 10/100 Mbps full-duplex Ethernet transmission, which is more than sufficient for the polling rates used in standard Modicon Modbus TCP/IP configurations. Latency in Modbus TCP/IP networks is primarily determined by switch configuration and PLC scan cycle time, not cable bandwidth. Using a managed industrial switch with QoS prioritization alongside the 490NAC0100 ensures deterministic communication performance.

Q2: Can this cable be used to connect a Modicon M580 PLC to a third-party SCADA system that uses OPC-UA or Ethernet/IP?The 490NAC0100 is a physical Ethernet cable and is protocol-agnostic at the physical layer. It will carry any Ethernet-based protocol, including OPC-UA and Ethernet/IP, as long as the connected devices support those protocols. For Modicon M580 systems, the BMEP58•040 CPU natively supports both Modbus TCP/IP and Ethernet/IP, making the 490NAC0100 suitable for multi-protocol network architectures.

Q3: What is the warranty coverage and how is it supported for international customers?All 490NAC0100 units supplied by NANKMOS carry a 12-month warranty from the date of shipment. Each unit undergoes pre-shipment functional verification. Warranty claims are handled directly by NANKMOS; contact [email protected] or +86 18359268345 for RMA initiation and technical support. Global shipping is available with full export documentation.

Q4: How do I verify that the 490NAC0100 I receive is genuine Schneider Electric stock and not a counterfeit?NANKMOS sources 490NAC0100 cables from authorized distribution channels and verified surplus inventories. Each unit is inspected for Schneider Electric part markings, connector quality, and cable construction before dispatch. Customers requiring additional traceability documentation (batch records, test reports) should contact NANKMOS prior to order placement.