Description
Processing of decentralized fieldbus data within Delta AH series automation architectures is managed directly by the Delta Electronics AH10DNET-5A DeviceNet master/slave communication module. This high-performance network interface integrates physical DeviceNet connectivity directly into the AH series PLC backplane, facilitating robust control over distributed I/O blocks, variable speed drives, and third-party industrial instruments. Equipped with hot-swapping support, the module minimizes production downtime during maintenance or expansion phases.
Features
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Dual-Mode Flexibility: Easily switchable between master and slave configurations via software configurations.
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Extensive Network Node Support: Connects up to 63 remote slave stations when operating in master mode.
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High Data Throughput: Provides a robust Remote I/O (RIO) capacity of up to 490 words for both input and output registers.
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In-Service Hot-Swapping: Allows module replacement without interrupting or de-energizing the main PLC rack operations.
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Integrated Diagnostics: Dedicated module and network status LED indicators provide immediate visual fault isolation and network state verification.
Applications
- Decentralized manufacturing lines requiring localized remote I/O scanning.
- Multi-axis conveyor and sorting systems integrated with variable frequency drives.
- Process control installations containing mixed-brand DeviceNet sensors and actuators.
- Packaging machines demanding high-availability module hot-swapping capabilities.
Technical Specifications
| Parameter |
Specification |
| Manufacturer |
Delta Electronics |
| Model Number |
AH10DNET-5A |
| Series |
AH Series |
| Module Type |
DeviceNet Communication Module |
| Internal Power Consumption |
0.9 W |
| External Power Consumption |
0.72 W |
| Communication Speed |
Supports up to 1 Mbps |
| Maximum Nodes (Master) |
63 Slave Stations |
| RIO Capacity (Master Mode) |
490 Words IN / OUT |
| Hot-Swapping Support |
Yes |
| Diagnostics |
On-board status LEDs (Module / Network Status) |
| Shipping Weight (Calculated) |
2.0 kg |
Connections and Interfaces
| Terminal / Pin |
Signal Allocation |
Standard Color Code |
| Pin 1 |
V- (Power Negative) |
Black |
| Pin 2 |
CAN_L (Signal Low) |
Blue |
| Pin 3 |
Shield (Drain / Ground) |
Bare / Silver |
| Pin 4 |
CAN_H (Signal High) |
White |
| Pin 5 |
V+ (Power Positive) |
Red |
Empirical Engineering Insights
Alternative Models & Compatibility
The AH10DNET-5A is strictly compatible with Delta AH Series rack architectures (such as the AH500 CPU system). It cannot be integrated into DVP series or AS series backplanes. When integrating with legacy DeviceNet networks, verify that the EDS (Electronic Data Sheet) files match the specific firmware version marked on your hardware housing to prevent addressing mismatches during software mapping.
Application Pitfalls & Engineering Notes
A common issue encountered on site is voltage drop across extended trunk lines. While the module draws 0.9W internally from the backplane, the external transceiver circuit relies on 0.72W from the external 24 VDC bus. If the network voltage drops below 11 VDC at the farthest node, communication timeouts will occur. Always implement dedicated, isolated auxiliary power taps for long network runs.
Commissioning & Wiring Tips
Ensure that 121-ohm, 1/4W termination resistors are physically wired in parallel across CAN_H (Pin 4) and CAN_L (Pin 2) at both physical endpoints of the trunk line. Do not rely on internal software terminations, as reflections will degrade signal integrity. Verify that all node addresses (MAC IDs) are unique before enabling master mode execution.
Installation Guidelines
CRITICAL WARNING:
Ensure all main power supplies to the PLC backplane and external network transceivers are completely de-energized before handling or wiring the module. Although hot-swapping is supported by the hardware, live wiring connection of terminal blocks risks generating static arcs that can damage internal optocouplers.
1
Slide the module onto the AH series backplane slots until the release latches click securely into position.
2
Secure the 5-pin open connector by tightening the retaining screws, maintaining the standard color-code orientation (Black, Blue, Shield, White, Red).
3
Apply system power and verify that the front-panel LEDs cycle through self-test diagnostics before establishing master communication.