Product Overview
The 1734-AENT is a communications module from the Allen-Bradley 1734 POINT I/O family, designed to connect a rack of up to 63 I/O modules to an Ethernet/IP network. It supports 10/100 Mbits/s half or full-duplex transmission and star or tree topologies, making it a flexible backbone for distributed automation.
Technical Specifications Breakdown
Key parameters for the 1734-AENT are listed below for quick reference:
| Feature | Specification |
|---|---|
| Module Type | Ethernet Adapter Module |
| Communication Rate | 10/100 Mbits/s, half or full-duplex |
| Supported Topologies | Star / Tree topologies |
| I/O Module Capacity | 63 modules |
| I/O Points, max. | 504 |
| Input Voltage Rating | 24 Volts DC |
| Power Consumption | 10.4 W @ 28.8V DC |
| Power Dissipation | 5.2 Watts (at 28.8 Volts) |
| POINTBus Current | 1000 milliamps |
| Field Side Power | 400 milliamps |
| Inrush Current | 6 Amps |
| Dimensions | 30 x 2.16 x 5.25 inches |
| Mounting | DIN rail |
| Ethernet Connector | RJ-45, Category 5 |
| Isolation Voltage | 50 Volts (Continuous) |
| Input Overvoltage Protection | Reverse Polarity Protected |
Industry Applications
For example, in a packaging line, the 1734-AENT aggregates sensor and actuator data from multiple POINT I/O modules, reducing wiring costs and simplifying troubleshooting. In water treatment facilities, its ability to support up to 504 I/O points over a single Ethernet connection minimizes cabinet space while maintaining reliable control.
Installation & Setup Guidance
Mount the 1734-AENT on a DIN rail using the integrated latch. Connect a 24 VDC power supply to the field power terminals, observing reverse polarity protection. Use Category 5 cable with RJ-45 connectors for the Ethernet link. Assign the IP address via BootP or DHCP tools as described in the user manual. The module auto-negotiates speed and duplex, so no manual configuration is needed for the network port.
Maintenance & Reliability
Periodically inspect the LED indicators—three red/green status LEDs on the CPU (module, network, POINTBus) and one green network activity LED—to verify normal operation. Keep the enclosure free of dust and moisture. The open enclosure type requires installation in a clean, controlled environment. No routine internal maintenance is required.
Compatibility & Integration
The 1734-AENT uses the Common Industrial Protocol (CIP) at the application layer, ensuring seamless integration with Ethernet/IP controllers from Allen-Bradley and other CIP-compliant devices. It supports both implicit (I/O) and explicit (configuration/messaging) connections, allowing simultaneous communication with multiple controllers.
Selection Guide & Purchasing Advice
When selecting the 1734-AENT, confirm your system’s I/O count does not exceed 63 modules or 504 points. For larger installations, consider adding expansion power supplies (one per 17 modules). AutoDCSTech stocks this adapter and can advise on lifecycle status. Please verify current lifecycle status and availability with AutoDCSTech before ordering.
Troubleshooting & Common Issues
If the module status LED is solid red, check the 24 VDC supply voltage and verify the power consumption (10.4 W) does not exceed the supply capacity. A flashing green network LED indicates no active connection—inspect the Ethernet cable and verify the IP address assignment. For POINTBus errors, ensure the total POINTBus current draw does not exceed 1000 milliamps.
Availability & Condition at AutoDCSTech
| Part Number | 1734-AENT |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
