Main Technical Parameters

• Number of Channels: 16 digital input channels
• Input Type: Dry contacts (NO/NC) or voltage/current signals (depending on specific configuration)
• Operating Voltage: 24 V DC (power supply)
• Supply Current: ≤ 0.5 A (typical)
• Response Time: ≤ 1 ms (typical)
• Operating Temperature Range: -25 °C ~ +70 °C (industrial grade)
• Protection Class: IP20 (indoor cabinet)
• Communication Interface: Multiple fieldbuses including PROFIBUS DP, PROFINET, Ethernet/IP, and Modbus TCP; can be connected to the system via HIMA standard bus cards
• Safety Integrity Level: Compliant with SIL 2/3 (depending on system configuration)

Product Features

• High Reliability: Adopts redundant circuit design, ensuring that a single point of failure does not affect overall functionality.
• Modular Structure: Can be combined with other X-series modules (such as X-DO1201, X-BLK01) in the same cabinet to achieve unified management of input, output, communication, and other functions.
• Multi-Protocol Compatibility: Supports a variety of industrial fieldbuses, facilitating integration with PLC/DCS systems of different brands.
• Easy Maintenance: Features a modular plug-in structure for quick on-site replacement, and is equipped with indicator lights to display working status.
• Compliance with Safety Standards: Meets international safety standards such as IEC 61508/61511, suitable for key point monitoring in Safety Instrumented Systems (SIS).

Structure and Composition

• Enclosure: Metal frame, compliant with the protection class requirements of IEC 60529.
• Power Input Terminals: 24 V DC power supply interface with reverse connection protection.
• Digital Input Terminal Block: 16-channel dry contact or signal terminals with clear identification.
• Communication Interface Board: Optional fieldbus cards (PROFIBUS, PROFINET, etc.), connected to the cabinet bus via the backplane.
• Indicator Lights: Power, communication, and fault indicator lights for quick on-site diagnosis.

Typical Application Fields

• Petrochemical Industry: Monitoring of key points such as safety valves, leak detection, and fire alarms.
• Metallurgy and Iron & Steel Industry: Collection of safety parameters such as high-temperature furnace temperature, pressure, and flow rate.
• Electric Power System: Collection of input signals for substation relay protection and distribution automation.
• Water Treatment and Environmental Protection: Safety monitoring of pump stations and sewage treatment facilities.
• Other Industries: Production lines with strict requirements for safety and reliability, such as automobile manufacturing, aerospace, and pharmaceuticals.

Installation and Maintenance Points

• Pre-Installation Inspection: Confirm that the cabinet power supply voltage is 24 V DC, and check that the terminal blocks are free of looseness or short circuits.
• Wiring Specifications: According to the wiring diagram in the product manual, connect dry contacts or signal wires to the corresponding input terminals respectively, and ensure correct polarity.
• Communication Configuration: Add the module in the fieldbus configuration software, set parameters such as node address and baud rate, and complete communication with the upper-level system.
• Function Testing: After power-on, check the status of the indicator lights; use a handheld tester to perform on-off tests on each input channel, and confirm that signals can be correctly uploaded to the control system.
• Regular Maintenance: Conduct a visual inspection every 6 to 12 months to remove dust and check the tightness of terminals; replace modules or terminals in a timely manner for faulty channels.
• Fault Diagnosis: The module is equipped with built-in fault indicator lights. If a light is on, the faulty channel can be located through the diagnostic function of the upper-level system; replace the entire unit or individual terminals if necessary.