Allen-Bradley 1398-DDM-005-DN Industrial Network Interface for ULTRA 100 Systems

Allen-Bradley 1398-DDM-005-DN: Industrial Data Link for ULTRA 100 DeviceNet Servo Systems

The Allen-Bradley 1398-DDM-005-DN is a DeviceNet-enabled AC Servo Drive from the ULTRA 100 series, engineered to serve as a high-performance industrial network interface between motion control hardware and plant-wide automation architectures. In modern smart factory environments, servo drives are no longer isolated motion components — they are active nodes on the industrial network, continuously exchanging real-time position, velocity, torque, fault, and diagnostic data with PLCs, SCADA systems, HMIs, and edge computing platforms. The 1398-DDM-005-DN is purpose-built for this role, delivering deterministic DeviceNet communication with the precision and reliability that industrial automation demands.

Designed for seamless integration into Rockwell Automation control architectures, the 1398-DDM-005-DN connects directly to Allen-Bradley ControlLogix and CompactLogix PLCs via the DeviceNet fieldbus, enabling closed-loop servo control with real-time feedback at the network level. Engineers deploying this drive alongside the 1756-DNB DeviceNet Scanner module can configure, monitor, and command the drive entirely through the PLC backplane — eliminating the need for dedicated point-to-point wiring and dramatically simplifying cabinet design in multi-axis servo systems.

Network Communication Table

Connected Automation Data Flow

In a fully connected production line, the 1398-DDM-005-DN acts as the critical data bridge between the physical motion layer and the digital intelligence layer of the factory. At the field level, encoder feedback from servo motors is processed by the drive’s internal motion controller, generating real-time position and velocity data that is immediately available on the DeviceNet network. This data flows upstream to an Allen-Bradley ControlLogix L7x PLC, where the 1756-DNB DeviceNet Scanner module polls the drive cyclically, ensuring deterministic data exchange with scan times well under 10 milliseconds.

From the PLC, process data is aggregated and forwarded to the plant SCADA system — typically a Rockwell FactoryTalk View SE or Wonderware InTouch deployment — where operators monitor servo performance, track production throughput, and receive real-time alarm notifications. Alongside the 1398-DDM-005-DN, installations commonly include the Allen-Bradley 1398-DDM-009-DN for higher-current axis requirements, and the 1398-DDM-019-DN for heavy-duty servo applications, all sharing the same DeviceNet network segment and managed through a unified RSNetWorx for DeviceNet configuration tool.

At the remote I/O layer, 1734 POINT I/O modules connected via the same ControlLogix backplane provide digital and analog signal acquisition from proximity sensors, photoelectric sensors, and pressure transducers on the production line. These signals are correlated with servo position data in the PLC program, enabling precise, event-driven motion sequences. For human-machine interaction, a PanelView Plus 7 HMI terminal connected via EtherNet/IP to the ControlLogix system provides operators with a graphical interface for servo parameter monitoring, jog control, and fault acknowledgment — all without requiring direct access to the drive’s front panel.

In multi-drive architectures, the 1398-DDM-005-DN coexists on the DeviceNet network with Allen-Bradley PowerFlex 40 and PowerFlex 70 variable frequency drives, enabling a unified network topology where both servo and AC induction motor drives are managed from a single PLC program. Edge gateway devices such as the Moxa MGate MB3180 or Cisco IE 4000 industrial switch can bridge DeviceNet data to higher-level EtherNet/IP or MQTT-based cloud analytics platforms, extending the data reach of the 1398-DDM-005-DN all the way to enterprise MES and ERP systems.

Solving Data Isolation in Industrial Sites

One of the most persistent challenges in legacy manufacturing environments is protocol fragmentation — servo drives, PLCs, remote I/O, and HMI systems from different generations using incompatible communication standards, creating data silos that prevent plant-wide visibility and coordinated control. The Allen-Bradley 1398-DDM-005-DN directly addresses this challenge by implementing the DeviceNet protocol, a widely adopted open standard that enables interoperability across hundreds of device types from multiple vendors within the Rockwell Automation ecosystem and beyond.

For facilities transitioning from hardwired servo control to networked motion architectures, the 1398-DDM-005-DN provides a clear migration path. Its DeviceNet interface allows existing ControlLogix or SLC 500 PLC programs to be extended with motion control capabilities without replacing the entire control infrastructure. Network-level parameter access means that drive tuning, fault diagnostics, and firmware updates can be performed remotely through RSLogix 5000 or Studio 5000 Logix Designer, eliminating the need for technicians to physically access drives installed in remote or hazardous locations.

Production line transparency is further enhanced by the drive’s ability to report detailed fault codes, operating hours, thermal status, and load data over the DeviceNet network. This information feeds directly into SCADA historian databases, enabling predictive maintenance algorithms to identify wear patterns before they result in unplanned downtime. System expansion is equally straightforward — additional 1398-DDM-005-DN drives can be added to the DeviceNet network by assigning unique node addresses, with the 1756-DNB scanner automatically detecting and integrating new nodes without requiring PLC program restructuring.

Industrial Connectivity FAQ

Q1: What is the maximum number of 1398-DDM-005-DN drives that can be connected on a single DeviceNet network?
A DeviceNet network supports up to 64 nodes (addresses 0–63), including the scanner module. In practice, the number of 1398-DDM-005-DN drives per network segment is limited by the network’s bandwidth and the scanner’s connection capacity. For large multi-axis systems, multiple 1756-DNB scanner modules on separate DeviceNet segments are recommended, with each segment managed independently through RSNetWorx for DeviceNet.

Q2: Is the 1398-DDM-005-DN compatible with Studio 5000 Logix Designer and Add-On Profiles?
Yes. The 1398-DDM-005-DN is fully compatible with Rockwell Automation’s RSLogix 5000 and Studio 5000 Logix Designer programming environments. Electronic Data Sheet (EDS) files for the drive are available through the Rockwell Automation Product Compatibility and Download Center (PCDC), enabling plug-and-play integration with RSNetWorx for DeviceNet and automatic I/O mapping in the PLC program.

Q3: How does the DeviceNet protocol handle network stability and communication fault recovery?
DeviceNet implements a robust error detection and recovery mechanism based on the CAN physical layer, including cyclic redundancy check (CRC) error detection, automatic retransmission of corrupted frames, and bus-off recovery procedures. In the event of a communication fault, the 1398-DDM-005-DN can be configured to hold last state, fault to a safe position, or execute a controlled stop sequence — all configurable through the drive’s DeviceNet parameter object without requiring a PLC program change.

Q4: What warranty and pre-shipment testing does the 1398-DDM-005-DN come with?
Every 1398-DDM-005-DN unit supplied by ZYPLC is covered by a 12-month warranty from the date of shipment. Prior to dispatch, each unit undergoes functional testing to verify DeviceNet communication, servo output integrity, and fault detection capability. Units are shipped via DHL or FedEx Express with full tracking, and in-stock units are typically dispatched within 1–3 business days of order confirmation.

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