WAGO Analog Module Plc Single Ended 750-455/702-000 4-CHANNEL 4-20MA

( Brand: Wago ), ( Model: 750-455/702 000 4-CHANNEL ), ( Analog/digital: Analog ), ( Type: Plc Input Module ), ( Controller Platform: Wago I/o System 750 ), ( UPC: 750455702000 )

Review WAGO 750-455/702-000 4-channel Analog Input Module Plc 4-20ma Single ended Used

The **Wago 750-455/702-000** is a high-performance, four-channel analog input module designed for seamless integration into industrial automation systems, particularly within PLC (Programmable Logic Controller) architectures. This single-ended module is engineered to interface with 4-20 mA current loop signals, making it an ideal solution for monitoring and controlling a wide range of analog processes in manufacturing, building automation, and process industries. Each of its four channels is equipped with robust, high-precision analog-to-digital converters (ADCs) that deliver exceptional accuracy and resolution, ensuring reliable data acquisition even in demanding environments. The module s compact, modular design allows for easy installation within Wago s scalable 750-series terminal blocks or directly into a PLC system, minimizing wiring complexity while maximizing flexibility. With built-in diagnostics and error handling capabilities, the 750-455/702-000 provides real-time feedback on signal integrity, voltage levels, and potential faults, enhancing system reliability and reducing downtime. Its compatibility with common industrial communication protocols, such as PROFINET, PROFIBUS DP, and EtherCAT, ensures seamless integration with modern control systems, enabling efficient data exchange and automation workflows. Whether used for temperature sensing, pressure monitoring, flow measurement, or other analog process variables, this module delivers consistent performance, durability, and ease of use, making it a trusted component in industrial automation setups.

### **Pros and Cons of buying a Wago 750-455/702-000 (4-Channel Analog Module for PLC, 4-20 mA, Single-Ended)**

#### **Pros**

1. **High Reliability and Durability**

The Wago 750 series is known for its robust construction, designed for industrial environments. The module features a compact, DIN-rail-mountable design with high-quality materials that resist vibration, dust, and moisture (IP20 rating). This makes it suitable for harsh factory or automation settings where reliability is critical.

2. **Easy Installation and Configuration**

Wago s push-in terminal technology simplifies wiring, reducing installation time and minimizing errors. The module supports hot-swappable installation in many PLC systems, allowing for quick replacement without powering down the entire system. Configuration is often straightforward, with options for manual setup or integration with Wago s I/O-Systems Manager software.

3. **Compatibility with Major PLC Brands**

This module is designed to work seamlessly with a wide range of PLCs, including Siemens, Allen-Bradley (Rockwell), Mitsubishi, and others, depending on the specific interface (e.g., Profibus, Ethernet/IP, or Modbus). Its universal 4-20 mA input ensures compatibility with standard analog sensors (e.g., temperature, pressure, flow meters).

4. **Scalability and Flexibility**

The 4-channel design allows for monitoring or control of multiple analog signals from a single module, reducing the number of I/O points needed. It supports single-ended connections, which simplifies wiring for many applications. Additionally, Wago offers expandable systems, so you can add more modules as your automation needs grow.

5. **Low Maintenance Requirements**

With no moving parts and minimal calibration needs, this module requires little to no maintenance over its operational lifespan. The 4-20 mA signal is inherently stable, reducing drift or signal degradation issues common in other analog interfaces.

6. **Cost-Effective for Standard Applications**

For basic analog input requirements (e.g., monitoring process variables), this module offers a cost-effective solution compared to proprietary or high-end alternatives. Its price point is reasonable for industrial use, especially when factoring in long-term reliability.

7. **Support for Standard Protocols**

Depending on the variant, the module may support common industrial communication protocols (e.g., Modbus RTU/TCP, Profibus DP, or Ethernet/IP), which enhances its versatility in existing automation networks. This reduces the need for additional gateways or converters.

8. **Quick Troubleshooting**

Wago modules often include diagnostic LEDs and error codes, making it easier to identify issues such as open circuits, short circuits, or signal range errors. This feature saves time during maintenance or debugging.

---

#### **Cons**

1. **Limited Advanced Features**

- Built-in signal conditioning (e.g., filtering, scaling, or linearization for non-linear sensors).

- Support for high-speed data acquisition or dynamic signal processing.

- Integration with advanced analytics or machine learning capabilities.

If your application requires these features, you may need to rely on the PLC s software or external devices.

2. **No Built-In Isolation for High-Voltage Applications**

The module does not include galvanic isolation between the input and output sides. In applications with high-voltage noise or potential ground loops (e.g., motor control, power systems), this could lead to signal corruption or safety risks. Isolation modules would need to be added separately.

3. **Dependence on PLC for Processing**

While the module handles input acquisition, all processing (e.g., scaling, alarming, or control logic) must be done in the PLC. This means the PLC s CPU must be capable of handling the additional I/O load, which could impact performance in resource-constrained systems.

4. **Potential Latency in Communication**

If the module uses a bus-based protocol (e.g., Profibus or Modbus), there may be slight delays in data transmission, especially in large networks with multiple devices. For high-speed control applications, this could be a minor drawback.

5. **Limited Customization**

The module s configuration is often fixed to standard parameters (e.g., input range, scaling). Customization options (e.g., adjusting deadbands, hysteresis, or advanced filtering) may require programming in the PLC, which could be cumbersome for non-technical users.

6. **No Built-In Redundancy or Fail-Safe Features**

In critical applications where uptime is non-negotiable, this module does not offer redundancy (e.g., dual-channel inputs or automatic failover). If a channel fails, the system may lose that input unless the PLC is programmed to handle it.

7. **Wiring Complexity for Single-Ended Connections**

Single-ended connections require careful grounding to avoid noise interference. Improper grounding or long cable runs can introduce signal degradation, which may necessitate additional shielding or filtering not provided by the module itself.

8. **Vendor Lock-In with Some PLCs**

While Wago modules are generally compatible with many PLCs, some proprietary systems (e.g., certain Allen-Bradley or Siemens variants) may require specific drivers or firmware updates. This could create dependency on the vendor for future support or upgrades.

---

### **Conclusion**

The **Wago 750-455/702-000 4-channel analog module** is an excellent choice for **standard industrial applications** requiring reliable, low-maintenance 4-20 mA analog input. Its strengths lie in **durability, ease of installation, compatibility with major PLCs, and cost-effectiveness** for basic analog monitoring or control tasks. It is particularly well-suited for:

- Process automation (e.g., temperature, pressure, flow monitoring).

- Factory automation where quick setup and minimal maintenance are priorities.

- Applications where signal integrity is critical but advanced processing is handled by the PLC.

- High-speed data acquisition or advanced signal processing.

- Galvanic isolation or high-voltage noise immunity.

- Redundancy or fail-safe mechanisms.

- Customizable analog conditioning without PLC programming.

If your use case aligns with its primary strengths, this module will deliver **consistent performance with minimal hassle**. For more demanding applications, consider supplementing it with isolation modules, additional filtering, or a PLC with built-in analog processing capabilities.

---

### **Recommendation**

- You need a **reliable, cost-effective 4-channel 4-20 mA analog input** for standard industrial automation.

- Your PLC can handle the input processing without performance bottlenecks.

- The application environment is **not extremely noisy or high-voltage** (or you can mitigate noise with proper grounding/shielding).

- You prioritize **easy installation, scalability, and long-term durability**.

- You require **galvanic isolation** (add a Wago 750-4xx isolation module).

- Your signals are **highly noisy or require advanced filtering** (consider a signal conditioner or isolated amplifier).

- You need **redundancy or fail-safe features** (evaluate modules with built-in diagnostics or dual-channel inputs).

- The PLC lacks **sufficient processing power** for the additional I/O (optimize PLC programming or upgrade the PLC).

For most **basic to intermediate analog input needs**, this module is a **strong, practical choice**. Always verify compatibility with your specific PLC and communication protocol before purchase.

Details:

WAGO 750-455/702-000 4-Channel Analog Input Module PLC 4-20mA Single-Ended. Volume pricing available.

part #: 750455 prices

• $55.00-$99.99

specifications sensoindustria:

• brand: Wago
• model: 750-455/702 000 4-channel
• analog/digital: Analog
• type: Plc Input Module
• controller platform: Wago I/o System 750
• upc: 750455702000

shipping sensoindustria:

• class: Standard
• carrier: USPS
• service: USPS Ground Advantage
• cost: $0.00
• transit: 5-11 Days
• type: Calculated

returns sensoindustria:

• policy: No Returns

seller sensoindustria:

• rating: 100.0%
• city: Houston, Texas
• # reviews: 168

payments sensoindustria:

• credit card: Mastercard
• other
• wallet: Apple-pay

general sensoindustria:

• PLCs HMIs > PLC Peripheral Modules > PLC Input Output Modules
• condition: Used

offer sensoindustria:

• started: May 30, 2026
• quantity: 2
• availability: In Stock
• options: Ship-to-home
• best offers: True
• sold: 0

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