1. Overview

2. Parameters

3. Product Features

• Modular Design: Adopts a stackable structure, supporting flexible I/O expansion (e.g., adding more than 20 I/O modules) to facilitate customization according to on-site requirements.
• Safety and Reliability: Complies with SIL 3 certification standards, featuring redundant architecture and fault-tolerant design to ensure safe shutdown even in case of hardware failures.
• Data Security: Communication modules support data encryption, identity authentication, and access control to ensure the security of network transmission.
• Easy Integration: Supports standard industrial protocols (Modbus TCP, Profibus, EtherNet/IP, OPC DA/A&E), enabling seamless connection with equipment from multiple manufacturers.
• Powerful Processing Capacity: Based on modern CPU, supporting complex safety logic operations and high-speed data processing.

4. Structure and Components

• CPU Module (F8627 CPU): Core control unit responsible for running safety control logic, usually with built-in redundant power supply and fault diagnosis functions.
• Communication Module (F8627 Ethernet/Communication): Provides Ethernet interfaces, supports multiple network protocols, and enables communication with upper-level systems or other PLCs.
• Digital Input Module (F8627X Digital Input): SIL 3-certified safety digital input module with 32 channels or more, supporting 2-5VDC input signals.
• Other I/O Modules: Such as analog input/output, pulse counter (HSO4), etc., forming a complete I/O expansion system.

5. Application Fields

• Process Industry: Safety Instrumented Systems (SIS) in oil, chemical, and natural gas processing plants.
• Power Plants: Safety-critical control systems in thermal power plants and nuclear power plants.
• Power Transmission and Distribution: Protection and control of power transmission and distribution systems.
• Water Treatment: Safety automation systems in large water plants.

6. Installation & Maintenance

6.1 Installation Preparation

• Safety Measures: Before installation, ensure that the HIMAX or HIQuad rack is powered off and grounded in accordance with IEC 61010-1 standard.
• Anti-Static: Wear an anti-static wristband during operation and avoid touching connector pins to prevent electrostatic damage to chips.
• Environmental Requirements: Ensure that the ambient temperature (0–60°C) and humidity (<85% non-condensing humidity) meet the specifications.

6.2 Installation Steps

• Insertion/Extraction: Firmly insert the module into the designated slot until the front locking lever clicks into place, ensuring full contact with the backplane.
• Wiring: Use shielded twisted-pair cables, and ground the shield only at one end (usually at the controller end) to prevent ground loop issues.
• Hazardous Area Wiring: In hazardous areas, use certified cable glands and maintain sufficient creepage distance.

6.3 Maintenance and Diagnosis

• No Periodic Calibration: F8627 generally does not require periodic calibration, but it is recommended to perform diagnostic checks regularly through HIMA Engineering Studio.
• Self-Test Function: The module has built-in self-diagnostic and self-monitoring functions, which can real-time detect the current range of input signals (e.g., 0.35–1.2 mA indicates 0 signal, 2.1–6.0 mA indicates 1 signal).
• Fault Handling: Supports cable break detection (≤ 0.28 mA) and short-circuit detection (≥ 6.5 mA), with a maximum cable length of up to 1000 meters.