Phoenix EPC 1502/1522 PLCnext Industrial Edge Computer Selection Guide

Phoenix EPC 1502 (1185416) and EPC 1522 (1185423) are two core models of the EPC 15x2 series PLCnext industrial edge computers, integrating the advantages of PLCnext real-time control and IPC powerful computing performance. Both are equipped with Intel Celeron N3350 dual-core processor, support IEC 61131-3/MATLAB Simulink/C/C++ multi-language programming, and are designed for small-form-factor industrial edge computing scenarios including protocol conversion, data collection, cloud connection and light-weight machine controlPhoenix Contact USA. The key difference lies in memory/storage configuration (EPC 1502: 2GB RAM+32GB eMMC; EPC 1522: 4GB RAM+64GB eMMC) to meet different performance and capacity requirementsassets.phoenixcontact.com.

1. Core Product Specifications & Direct Comparison

The two models share the same industrial design and core functions, with RAM and storage capacity as the main distinguishing features, detailed as follows:

2. Model Naming Rules & Product Positioning

2.1 Naming Logic Interpretation

Phoenix EPC series follows a clear industrial product naming specification for quick identification of core attributes:

2.2 Product Positioning

The EPC 15x2 series fills the gap between traditional PLC and high-end industrial PC, positioned as:

1. PLCnext Control Extension: Extends the functions of AXC F 2152 PLC with more powerful computing and richer interfaces for complex control scenarios
2. Edge Computing Gateway: Realizes data exchange between field devices and cloud platforms (AWS/Azure/Industrial Cloud), supporting OPC UA/MQTT protocolsPhoenix Contact USA
3. Light-weight IPC: For industrial sites requiring small size, low power consumption and real-time performance, replacing bulky traditional IPCs
4. Protocol Converter: Converts between different industrial protocols (PROFINET/EtherNet/IP/Modbus TCP), solving the problem of heterogeneous network integrationPhoenix Contact USA

3. Core Advantages of EPC 15x2 Series

1. Dual Core of PLCnext RT & IPC Computing

   • PLCnext RT real-time kernel ensures 1ms-level cycle time for control tasksassets.phoenixcontact.com
   • Intel Celeron processor provides up to 2.4GHz burst frequency for data processing and complex algorithm operationassets.phoenixcontact.com
   • Multi-language programming (IEC 61131-3 + C/C++ + Python) enables seamless integration of traditional control and modern software developmentPhoenix Contact USA

2. Small Form Factor & Industrial Reliability

   • Compact design (IP30 protection) saves 70% of installation space compared with traditional industrial PC
   • 24V DC wide-range power supply with reverse polarity protection, adapting to unstable industrial power grids
   • 0°C-50°C operating temperature range and industrial-grade components ensure stable operation in harsh environmentsassets.phoenixcontact.com
   • DIN rail/wall dual mounting methods, compatible with standard control cabinet layout

3. Rich Connectivity & IIoT Compatibility

   • 2 Gigabit Ethernet ports (1 x PROFINET RT/IRT, 1 x standard Ethernet) for fieldbus and enterprise network connection
   • 2 USB 3.0 ports for data storage expansion and peripheral connection (HMI/keyboard/mouse)
   • HDMI interface for on-site monitoring and debugging
   • microSD slot for additional storage expansion (up to 512GB)
   • Native support for OPC UA/MQTT protocols, realizing plug-and-play connection with mainstream industrial cloudsPhoenix Contact USA

4. Cost-effective Performance Configuration

   • Two-tier configuration (EPC 1502 entry-level/EPC 1522 enhanced) to meet different budget and performance requirements
   • Free PLCnext Engineer software for programming and debugging, reducing development costs
   • Long-term supply and maintenance guarantee, suitable for industrial projects with 5-10 years life cycle

4. Application Scenarios & Selection Suggestions

4.1 Suitable Application Scenarios

The EPC 15x2 series is widely used in industrial automation and IIoT scenarios requiring small size, real-time performance and edge computing capabilities:

4.2 Selection Flowchart

Follow these steps to quickly select the appropriate model based on actual needs:

1. Determine Core Functions: Clarify whether it is used for basic protocol conversion/data collection (EPC 1502) or complex edge analytics/multi-task control (EPC 1522)
2. Evaluate Performance Requirements:
   • Number of concurrent tasks: 1-3 simple tasks (EPC 1502); 4+ complex tasks (EPC 1522)
   • Data storage volume: <10GB monthly (EPC 1502); 10-30GB monthly (EPC 1522)
   • Algorithm complexity: Basic data processing (EPC 1502); Machine learning/complex calculation (EPC 1522)
3. Consider Future Expansion: If there is a possibility of function expansion in 1-2 years, it is recommended to choose EPC 1522 for longer service life
4. Budget Balance: Choose EPC 1502 for cost-sensitive projects with clear and simple requirements; choose EPC 1522 for projects with higher performance and capacity requirements

5. Installation & Use Notes

1. Mounting Requirements:
   • DIN rail mounting: Use standard NS35/32 rail, ensuring stable fixation in vibration environments
   • Wall mounting: Use dedicated mounting brackets, keeping a distance of ≥5cm from other heat-generating components for heat dissipation
2. Power Supply:
   • Use 24V DC industrial power supply with ripple ≤5%, avoiding power quality problems affecting stability
   • Add a 10A circuit breaker for overload protection
3. Environmental Conditions:
   • Operating temperature: 0°C-50°C, avoid direct sunlight and high humidity (>90% RH non-condensing) environments
   • Dust protection: IP30 rating requires installation in a closed control cabinet
4. Software Configuration:
   • Install PLCnext Engineer (V2021.0 LTS or later) for programming and debugging
   • Configure edge functions through PLCnext Store, supporting one-click installation of OPC UA/MQTT servers
   • Regularly update firmware to obtain the latest security patches and function enhancements