1734-OE2V | Allen-Bradley POINT I/O | 2-Channel 0-10V Analog Output Module

Module Overview

The 1734-OE2V is a high-precision analog output module designed for the Allen-Bradley POINT I/O platform. This module provides two single-ended, non-isolated voltage outputs, typically used to drive Variable Frequency Drives (VFDs), pressure regulators, or proportional valves that require a standard 0–10V DC control signal. With its 14-bit resolution and rapid conversion rate, the 1734-OE2V delivers smooth, granular control for process loops where high-speed response and signal accuracy are critical. Its ultra-compact 12mm width makes it an ideal choice for distributed I/O racks with limited space.

Detailed Engineering Specifications

The 1734-OE2V utilizes a high-speed digital-to-analog converter to translate PLC data into precise physical voltage levels.

• Number of Outputs: 2 Channels (Single-ended, Non-isolated)

• Output Voltage Range: 0 to 10 Volts DC

• Resolution: 14-Bit (Unipolar)

• Conversion Type: Digital-to-Analog (D/A)

• Conversion Rate: 20 microseconds per channel

• Step Response: 20 milliseconds to 99% of final value

• Current Load: 3 milliamps maximum per channel

• External DC Power: 24V DC nominal (10–28.8V DC range)

• POINTBus Current: 75 mA @ 5V DC

• Power Dissipation: 1.0 Watt maximum

• Thermal Dissipation: 3.4 BTU/hour

• Operating Temperature: -20°C to 55°C (-4°F to 131°F)

• Data Format: Signed Integer

• Physical Weight: 0.13 lbs (0.06 kg)

Signal Integrity and Wiring

Because the 1734-OE2V features non-isolated, single-ended outputs, both channels share a common return path. To maintain the 14-bit signal integrity and prevent electrical noise from affecting the output, it is essential to use shielded twisted-pair cabling (such as Belden 8761). The shield should be grounded at only one end, typically at the POINT I/O chassis ground, to avoid ground loops that could introduce offsets into the 0–10V signal.

Installation and Hardware Requirements

The 1734-OE2V is a "plug-in" module that must be seated into a 1734-MB mounting base. It requires a Removable Terminal Block (RTB), specifically the 1734-RTB (screw) or 1734-RTBS (spring), to interface with field wiring. Before installation, the mechanical keying on the mounting base must be set to Position 4 to ensure the module is correctly aligned and protected from mismatched voltage levels in the rack.

Technical FAQ

Can the 1734-OE2V be used for -10V to +10V bipolar signals?

No. This specific module is designed for unipolar 0–10V DC operation. For bipolar voltage applications, the 1734-OE2C or a specialized bipolar module would be required.

How do I handle the "Signed Integer" data format in my logic?

In Studio 5000, the 0–10V output is typically represented by a value range of 0 to 10,000 (or 0 to 16,383 depending on scaling). Using "Signed Integer" allows the controller to handle the data with standard math instructions before sending the final value to the module's output register.

What happens if the 24V DC field power is lost?

The module requires 24V DC field-side power (provided via the power bus in the mounting base) to generate the 0–10V signal. If field power is lost, the "NODE" or "POINT" status LED will typically flash red, and the outputs will drop to 0V.