Allen-Bradley 1734-OE2C Point I/O Analog Output Module | 2-Channel, 0-20mA, 12-bit, 24V DC, IP20 Specs

Allen-Bradley 1734-OE2C Point I/O Analog Output Module | 2-Channel, 0-20mA, 12-bit, 24V DC, IP20 Specs

Allen-Bradley 1734-OE2C Point I/O analog output module specifications. 2-channel 0-20mA output, 12-bit resolution, 24V DC, IP20 protection. For industrial process control and automation.

Product Overview

The Allen-Bradley 1734-OE2C​ is a 2-channel current-sinking analog output module​ from the Point I/O series, designed for industrial process control applications. This module provides 2 isolated output channels​ with 0-20 mA output signals, 12-bit resolution, and operates on 24V DC system power. The "1734" designation indicates the Point I/O series, "OE2C" specifies the analog output configuration with 2 channels (current sinking). This compact module integrates with Allen-Bradley's Point I/O system for distributed analog control of valves, actuators, and other process control devices in industrial automation systems.

Technical Specifications

Note: Specifications are based on Allen-Bradley 1734 series technical documentation. The "1734-OE2C" model specifically indicates 2-channel current-sinking analog output configuration. Actual specifications may vary slightly depending on production batch.

Model Number Decoding (1734-OE2C)

• 1734:​ Series designation (Point I/O series 1734)

• OE2:​ Module type (OE = analog output, 2 = 2 channels)

• C:​ Output type (C = current sinking)

Note:​ The "OE" prefix indicates analog output functionality. The "2" suffix specifies 2 output channels. The "C" designation indicates current-sinking output type. This module is part of the modular Point I/O system and requires a base unit (1734-XXXX) and appropriate power supply for operation.

Key Features

• Dual Channel Output:​ Two isolated 0-20 mA current-sinking output channels

• High Resolution:​ 12-bit resolution (4096 steps) for precise control

• Fast Update Rate:​ 5 ms per channel update rate for responsive control

• Current Sinking Design:​ Sinks current to common, compatible with most industrial devices

• Programmable Ranges:​ User-configurable output ranges (0-20 mA standard)

• LED Diagnostics:​ Comprehensive status indication for module and channels

• Removable Terminals:​ Screw terminal blocks for easy wiring and maintenance

• DIN Rail Mounting:​ Compact design for space-efficient installation

• Isolated Channels:​ 500V AC isolation between channels and backplane

• Short Circuit Protection:​ Auto-recovery short circuit protection on outputs

• Modular Design:​ Integrates with Point I/O system for distributed I/O architecture

Output Characteristics

Typical Applications

• Process Control:​ Control of control valves, variable speed drives, and actuators

• Flow Control:​ Analog control of flow control valves in process industries

• Temperature Control:​ Control signal to temperature controllers and heaters

• Level Control:​ Control of level control valves in tanks and vessels

• Pressure Control:​ Control of pressure regulating valves

• Speed Control:​ Analog speed reference for variable frequency drives

• Position Control:​ Control of proportional valves for hydraulic/pneumatic positioning

• Mix Ratio Control:​ Control of ingredient feed rates in batching systems

• pH/Conductivity Control:​ Control of chemical dosing pumps

Important Technical Notes

1. System Requirements:​ Requires 1734 Point I/O base unit (1734-XXXX) and 24V DC power supply. Not a standalone device.

2. Current Sinking Configuration:​ This module sinks current (sources positive voltage, sinks negative). Ensure compatibility with connected devices.

3. Load Resistance:​ Verify connected device impedance is within 0-750 Ω range. Exceeding maximum load resistance affects output accuracy.

4. Power Supply:​ Ensure adequate power supply capacity for both module operation and field device power requirements.

5. Wiring:​ Use twisted, shielded pair cables for analog signals. Ground shield at one end only (typically at the module end).

6. Configuration:​ Module requires configuration via programming software (RSLogix 5000, Studio 5000) for proper operation. Configure output range, scaling, and update rates.

7. Grounding:​ Proper grounding and shielding are essential for noise immunity in industrial environments.

8. Environmental Conditions:​ Install in appropriate enclosure for protection against dust, moisture, and contaminants. IP20 provides limited protection.

9. Maintenance:​ Periodically check connections, cable integrity, and output signals. Verify output current with calibrated multimeter if accuracy issues are suspected.

Note: For complete installation guidelines, wiring diagrams, configuration instructions, and detailed technical data, consult the official Allen-Bradley 1734 Series Technical Manual. Always verify the exact model number configuration with the manufacturer, as notation variations may occur.