Allen-Bradley 1734-OB8 POINT I/O Output Module

Manufacturer

Allen Bradley

Product Type

POINT I/O Output Module

Product Line

Point I/O 1734

Part Number

1734-OB8

Weight

0.13 lbs (0.06 kg)

UPC

10612598310279

Number of Outputs

8

On-State Voltage Range

10 Volts DC to 28.8 Volts DC

Nominal On-State Voltage Rating

24 Volts DC

Maximum On-State Voltage Drop

0.2 Volts DC

Minimum On-State Current Rating

1.0 Milliamps per Channel

Maximum Off-State Leakage

0.5 Milliamps at 28.8 Volts DC

Maximum Output Signal Delay

0.1 Milliseconds

Output Current Rating

1.0 Amp per Output; 2.0 Amps Maximum

Surge Current

2 Amps for 10 Milliseconds, Repeatable Every 3 Seconds

Indicators

8 Yellow (Output Status) and 2 Green/Red (Module/Network Status)

Isolation Voltage

50 Volts (Continuous)

The Allen Bradley 1734-OB8 is a sophisticated POINT I/O Output Module facilitating reliable output operations across multiple applications. This unit contains eight individual output channels, each capable of handling a minimum on-state current of 1.0 milliamps, ensuring minimal power consumption while delivering necessary performance. Users can expect it to function effectively within an on-state voltage range extending from 10 volts DC to 28.8 volts DC, with a nominal on-state voltage rating of 24 volts DC.

Regarding performance, the module features a maximum output signal delay of only 0.1 milliseconds, allowing for prompt and responsive operation. The maximum on-state voltage drop is limited to 0.2 volts DC, optimizing energy efficiency. Furthermore, any maximum off-state leakage is recorded at just 0.5 milliamps at 28.8 volts DC, ensuring minimal energy loss. Each of the eight outputs can deliver current up to 1.0 Amp, while the combined output rating can reach a maximum of 2.0 Amps.

This module also withstands a surge current of up to 2 Amps for brief intervals lasting 10 milliseconds and can handle such surges every three seconds, adding stability during spikes in demand. For operational clarity, there are eight yellow indicators displaying output status along with two green/red indicators that inform users of the module and network status.

The isolation voltage stands at 50 volts for continuous operation, enhancing safety during usage. Overall, the 1734-OB8 module integrates valuable features aimed at improving output management in automated systems.

1734-OB8 POINT I/O Output :

（ModuleC = Common V = Supply）

Output Module 1734-OB8:

Wiring Example for 1734-OB8:

Q1: How does the AB 1734-OB8 enhance deterministic control of field actuators within distributed POINT I/O automation infrastructures?
A: The AB 1734-OB8 is an 8-channel 24V DC sourcing digital output module that delivers reliable command signals to field devices such as relays, solenoids, indicators, and contactors, ensuring precise output execution.

Q2: What architectural advantages does the AB 1734-OB8 offer for high-density industrial control applications requiring scalable output deployment?
A: The AB 1734-OB8 features a compact POINT I/O design that maximizes panel space utilization while supporting flexible system expansion and distributed control topologies.

Q3: Why is the AB 1734-OB8 regarded as a robust solution for mission-critical discrete output switching operations?
A: The AB 1734-OB8 incorporates electronic protection features and dependable output circuitry, helping maintain operational continuity and safeguarding connected field equipment from abnormal conditions.

Q4: How can the AB 1734-OB8 facilitate seamless interoperability between Logix controllers and external industrial devices?
A: The AB 1734-OB8 communicates efficiently through the POINT I/O platform, enabling controllers to execute real-time switching commands for a wide range of industrial loads and automation processes.

Q5: Which engineering considerations should be assessed when integrating an AB 1734-OB8 module into a sophisticated control system environment?
A: Engineers should evaluate output current requirements, load characteristics, wiring integrity, power distribution capacity, and environmental operating conditions to ensure optimal AB 1734-OB8 performance and long-term reliability.

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