Allen-Bradley 193-ECM-DNT – DeviceNet Communication Module | E3 Plus Overload Relay Platform
Engineering Background: The 193-ECM-DNT is a plug-in DeviceNet communication module engineered by Rockwell Automation for the Allen-Bradley E3 Plus and E3 electronic overload relay family. It enables seamless integration of motor protection devices into DeviceNet industrial networks, providing real-time diagnostics, remote parameter configuration, and fault management without additional wiring infrastructure.
Product Positioning: Designed for procurement engineers and system integrators who require a certified, drop-in communication expansion for existing E3 Plus installations. The 193-ECM-DNT eliminates the need for discrete I/O wiring by leveraging the DeviceNet fieldbus, reducing panel footprint and commissioning time in demanding industrial environments.
Complete Technical Specifications
- Part Number / SKU: 193-ECM-DNT
- Manufacturer: Allen-Bradley / Rockwell Automation
- Product Series: 193 E3 Plus Communication Module
- Network Protocol: DeviceNet (CAN-based, IEC 62026-3)
- Data Rate: 125 kbps / 250 kbps / 500 kbps (auto-detect)
- Node Address: 0–63, configurable via rotary switches
- Supply Voltage: Powered via DeviceNet bus (11–25 VDC)
- Current Consumption: ≤ 40 mA @ 24 VDC from DeviceNet bus
- Compatible Base Units: 193-EC1, 193-EC2, 193-EC3, 193-ECPM (E3 Plus family)
- Mounting: Direct plug-in to E3 Plus communication port (no tools required)
- Operating Temperature: -20°C to +60°C
- Storage Temperature: -40°C to +85°C
- Relative Humidity: 5–95% non-condensing
- Protection Rating: IP20 (module only)
- Dimensions (W × H × D): Approx. 45 × 60 × 30 mm
- Weight: Approx. 450 g (packaged)
- Certifications: UL Listed, CE Marked, cUL, ODVA Conformance Tested
- Country of Origin: USA / Mexico (Rockwell Automation manufacturing)
Proven Application Environments
- Motor Control Centers (MCC) with DeviceNet backbone
- Conveyor and material handling systems requiring remote motor diagnostics
- Pump and fan control panels integrated into Allen-Bradley PLC architectures (ControlLogix, CompactLogix)
- HVAC and building automation systems with DeviceNet fieldbus
- Food & beverage processing lines requiring IEC-compliant motor protection networking
- Oil & gas auxiliary motor control with remote fault monitoring
- Automotive assembly lines with high-density DeviceNet node deployments
Engineering Advantages
- Zero-wiring expansion: Plug-in form factor eliminates discrete I/O wiring between overload relay and PLC.
- Real-time diagnostics: Transmits current, voltage, power, thermal capacity, and fault codes over DeviceNet.
- Remote parameter access: Full read/write access to E3 Plus trip class, FLA setting, and protection parameters via network.
- Predictive maintenance ready: Continuous thermal model data enables proactive motor protection strategies.
- ODVA conformance: Interoperable with any ODVA-certified DeviceNet master scanner.
- Compact footprint: No additional DIN rail space required; mounts directly to the E3 Plus base unit.
System Architecture & Signal Flow
The 193-ECM-DNT connects directly to the communication port on the E3 Plus overload relay base unit. The module draws power from the DeviceNet bus (V+ / V−) and communicates via the CAN_H / CAN_L differential pair. The E3 Plus acts as a DeviceNet slave device; the PLC scanner (e.g., 1756-DNB or 1769-SDN) acts as the master. Polled I/O messaging provides cyclic status and control data, while explicit messaging enables parameter read/write and fault log retrieval. Node address is set via two onboard rotary switches (×10 and ×1 digits) prior to installation.
Sourcing & Quality Verification
- Source: Authorized distribution channels and verified surplus OEM stock.
- Inspection: Each unit undergoes visual inspection, label verification, and functional continuity check before shipment.
- Authenticity: Rockwell Automation holographic labels and date codes verified. Counterfeit-risk screening applied to all surplus units.
- Packaging: Ships in original or equivalent ESD-safe packaging with protective foam insert.
- Documentation: Datasheet, installation instructions, and certificate of conformance available upon request.
Procurement Process
- Submit your RFQ or place order directly on Konmask.com.
- Receive order confirmation and lead-time estimate within 1 business day.
- Unit inspected, packed, and dispatched with tracking number.
- Express international shipping available (DHL / FedEx / UPS).
- Post-delivery technical support available via email or WhatsApp.
Technical FAQ
Q: Is the 193-ECM-DNT compatible with the E3 (non-Plus) overload relay?
A: No. The 193-ECM-DNT is designed exclusively for the E3 Plus family (193-EC1/EC2/EC3/ECPM). The legacy E3 uses a different communication port and requires the 193-ECM-DN module.
Q: Can this module be used with EtherNet/IP instead of DeviceNet?
A: No. For EtherNet/IP connectivity, use the 193-ECM-EIP module. The 193-ECM-DNT is DeviceNet-only.
Q: Does the module require external 24 VDC power?
A: No. The module is bus-powered from the DeviceNet network supply (11–25 VDC). No separate power wiring is required.
Q: What EDS file is required for RSNetWorx for DeviceNet?
A: The EDS file for the 193-ECM-DNT is available from the Rockwell Automation Product Compatibility and Download Center (PCDC). Reference catalog number 193-ECM-DNT when searching.
Q: Is firmware upgradeable?
A: Firmware is factory-set and not field-upgradeable on this module generation. Verify firmware revision compatibility with your E3 Plus base unit revision.
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