Features:
- Interface Between the Digital Control System and Field Output Devices via POINT I/O™ Rack Backplane
- Combines Capability of Protected Output Switching with Real-Time Status Indication
- Operates in Conjunction with DeviceNet, PROFIBUS, ControlNet, and Ethernet Adapters
The 1734-OB4E Allen-Bradley 1734 POINT I/O Protected Output Module operates as a discrete digital output module within a 1734 POINT I/O™ rack, providing reliable protected switching for up to four output channels. It continuously drives field loads while incorporating built-in output protection that safeguards each channel against electrical faults such as short circuits and overloads. Seamless integration is standard with the 1734-OB4E, and using compatible adapters allows flexible deployment across multiple communication networks including DeviceNet, PROFIBUS, ControlNet, and Ethernet. The 1734-OB4E incorporates universal adapter compatibility within the POINT I/O™ system and has made improvements in diagnostic visibility over previous output module designs through dedicated status LED indicators.
The 1734-OB4E provides essential output functions common to discrete control applications, and is a critical component of the control path, directly affecting the proper, normal operation of field devices connected to the overall automation system. One or more 1734-OB4E modules are required per POINT I/O™ rack depending on the desired number of output channels. The 1734-OB4E occupies a compact single slot in the rack and can be located in any standard I/O slot position alongside other POINT I/O™ modules.
For comprehensive system monitoring, the 1734-OB4E module provides dedicated status indication for each output channel and module/network health. In addition to standard output operation, the 1734-OB4E also performs real-time fault detection. The 1734-OB4E output protection mechanism executes fault isolation using internal circuitry specified in the module specifications. Using this method, the 1734-OB4E continually monitors the health of each output. If the system detects that an output channel is experiencing a fault condition (outside configured protection thresholds), it will automatically indicate the fault via the red output fault LED and report the status to the connected network adapter for system-level diagnostics.
The 1734-OB4E Allen-Bradley Protected Output Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Allen-Bradley 1734-OB4E Protected Output Module Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Allen-Bradley 1734-OB4E Protected Output Module Specs
General
- Manufacturer Allen-Bradley
- Model 1734-OB4E
- Condition New Original ready stock
- Product Family 1734-OB8E,1734-OB2E
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- Target Devices: Controls 24V DC discrete field devices such as solenoids, small DC motors, pilot lights, and indicators.
- Protection Criticality: Specifically used in systems where individual point-level short-circuit and overload protection are required to prevent total system failure.
- Architecture: Designed for the POINT I/O platform, fitting high-density remote I/O layouts across EtherNet/IP, DeviceNet, and ControlNet networks.
- Industry Use: Common in automotive assembly, water/wastewater management, and chemical processing.
- Operating Temperature: -20 °C to 55 °C (-4 °F to 131 °F).
- Storage/Transport Temperature: -40 °C to 85 °C (-40 °F to 185 °F).
- Relative Humidity: 5% to 95% (non-condensing) Operating Altitude: Up to 2,000 m (6,562 ft).
- Environmental Rating: Open-style (requires an enclosure with a minimum IP54 rating for industrial environments).
- Outputs: 4 current-sourcing channels (10–28.8V DC range).
- Capacity: Maximum 1.0 A per point and 3.0 A per module.
- Response Time: 0.1 ms (OFF-ON) / 0.1 ms (ON-OFF).
- Power/Thermal: 1.2 W (max) dissipation at 28.8V DC; 75 mA (max) at 5V DC via POINTBus.
- Diagnostics: Integrated electronic fusing for point-level, short-circuit, and overload protection.
- Indicators: 4 yellow (status), 4 red (fault), and 2 network/module LEDs.
- Isolation: 50V continuous, 2500V DC (field-to-system) dielectric test.