1756-OF4 Allen Bradley Rockwell Analog Output Module

Product parameters

Module type:

ControlLogix analog output module, non-isolated type.

4-channel analog output, supporting voltage or current output.

Output signal range:

Voltage output: ±10V.

Current output: 4-20 mA or 0-20 mA.

Resolution:

Voltage: 16-bit, span 10.5V, 320 µV/bit.

Current: 15 bits, span 21 mA, 650 nA/bit.

Number of output channels

Four single-ended output channels.

Analog-to-digital Conversion (DAC)

The R-Ladder DAC conversion method is adopted to ensure monotonicity and no lost code.

Data format: IEEE 32-bit floating-point number or 16-bit integer.

Isolation and Protection

There is no inter-channel isolation (non-isolated module).

Overvoltage protection: ±24V DC in voltage mode and ±24V DC in current mode.

Open circuit detection (current mode) : Detects the disconnection status.

Short-circuit protection (voltage mode) : Protects the module from short-circuit damage.

Power consumption and power supply:

Backplane current: 150 mA @ 5.1V DC, 120 mA @ 24V DC.

Total backplane power: 3.7W (voltage mode), 5.8W (current mode, depending on the load).

Heat dissipation: 10.91 BTU/hr in voltage mode, and the current mode depends on the load.

Scanning time:

Floating-point mode: 12 ms.

Integer mode: 8 ms.

Calibration

Calibration accuracy: 0.05% (within the range of 4-20 mA or ±10.4V).

Suggested calibration cycle: 12 months.

Working environment

Operating temperature: 0 to 60°C.

Installation method: ControlLogix rack, in combination with 1756-TBNH or 1756-TBSH detachable terminal blocks (RTB, 20 pins).

Open casing, it needs to be installed in a well-ventilated control cabinet.

Wiring requirements:

Recommended wire diameter: 0.33 to 2.1 mm² (22 to 14 AWG), use shielded copper wire, insulation class 105°C or higher.

Certification and Standards

It complies with standards such as CE, CUL, GOST, KC, RCM and UL.

UPC code: 612598171828.

Function

High-precision analog output

Provide ±10V or 4-20mA analog signals for driving analog devices or actuators.

High resolution (15-16 bits) ensures precise output control.

Flexible signal configuration

Each channel can be independently configured as either voltage or current output to meet the requirements of various devices.

Supports multiple data formats (floating-point or integer), facilitating integration with different control strategies.

Fault and Condition Monitoring

It provides open-circuit detection (current mode) and short-circuit protection (voltage mode) to enhance system reliability.

Support multicast fault data and status information to the main controller for real-time monitoring.

Real-time data processing

Support real-time channel sampling and data alarm.

Provide the rolling timestamp function to facilitate the application of Event sequence (SOE).

Easy to install and maintain

Supports live plug and unplug (RIUP), which is convenient for maintenance and replacement.

Simplify on-site wiring by using detachable terminal blocks (RTB).

Communicate with the ControlLogix controller via ControlNet or EtherNet/IP network, supporting distributed control.

Engineering unit scaling:

Support scaling the output signal to the engineering unit to simplify the user program design.

Application scenarios

Industrial Automation and Process Control

Petroleum and natural gas: Control the operation of regulating valves, frequency converters (VFDS) or pumps, and adjust parameters such as flow rate and pressure.

Chemical engineering and pharmaceuticals: Drive actuators to control the liquid level, temperature or flow rate during the reaction process, ensuring process accuracy.

Water treatment: Adjust the water pump or valve to control the flow or pressure of the water treatment system.

Manufacturing industry

It is used to control variable frequency drives (VFDS), servo motors or pneumatic actuators to optimize the speed and efficiency of the production line.

It is suitable for scenarios that require precise simulation output, such as packaging machines or robot control.

Energy Management

In the power system, it controls the output signals of generators or distribution equipment to optimize energy distribution.

It is used for signal retransmission to recorders, indicators or data loggers to monitor system performance.

Complex control strategy

Supports advanced control strategies such as Cascade control and Feedforward control, and interacts with external controllers or devices through analog output.

It is applicable to distributed control systems (DCS) that require high-precision analog signals.

General industrial environment

The non-isolated design is suitable for environments with low electrical noise, offers high cost performance, and is applicable to small and medium-sized automation projects.

The compact design of the module and its ControlLogix rack compatibility make it easy to integrate into existing systems.

Advantage Products:

All items are Distributor Ready-stock Genuine Brand-new Supplying, please inform us if the other conditions are needed, Used, Open-box, Refurbished, etc.

Many Available just wait for you, feel free to ask to get better deal!!!

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