HIMA X-DI1601 985210222是HIMA HIMax安全仪表系统SIS的16通道故障安全型数字输入模块，负责采集现场开关、阀门、继电器的离散状态信号。

HIMA X-DI1601 985210222 is 16-channel fail-safe digital input module for HIMA HIMax SIS safety instrumented system, used to collect discrete status signals from field switches, valves and relays.

满足IEC61508 SIL3安全等级，支持24VDC干接点与有源DI信号，自带通道线路诊断与面板状态灯，支持不停机热插拔，是ESD、F&G安全联锁回路核心输入卡件。

It complies with IEC61508 SIL3 safety standard, supports 24VDC dry contact and active DI signals, with channel line diagnosis and front status LEDs, hot-swap without system shutdown, core input card for ESD and F&G safety interlock loops.

Main Specifications 技术参数

• 1. Product Series / 产品系列：HIMA HIMax SIS Safety Instrumented System

• 2. Part Numbers / 型号编码：X-DI1601，985210222

• 3. Function Type / 类型：16 Channel Digital Input Module 数字输入模块

• 4. Key Features / 特性：SIL3, 16DI, 24VDC, channel diagnosis, LED indicator, hot swap

• 5. Compatibility / 配套：HIMax机架、CPU模块、X-FTA004端子组件、LM002_MAX

Core Functions 核心功能

• 1. 16路独立数字信号采集，支持无源干接点和24VDC有源开关信号。
  16 independent digital signal acquisition channels, compatible with passive dry contact and 24VDC active switch signals.

• 2. 通道级线路监测，识别断线、短路故障，实时上报诊断信息至CPU。
  Channel-level line monitoring to detect wire break and short circuit, send diagnostic data to CPU in real time.

• 3. 面板LED通道状态指示，运维人员快速判断每一路信号通断状态。
  Front LED channel status indicator for maintenance engineer to judge signal status quickly.

• 4. 背板总线和主控CPU交互，信号参与安全表决逻辑，满足SIL3安全架构。
  Communicate with main CPU via backplane bus, signals participate in safety voting logic for SIL3 architecture.

• 5. 支持在线热插拔，单块卡件更换不影响其余安全回路持续运行。
  Online hot-swap support, replacement of single card will not interrupt operation of other safety loops.

Application Scenarios 应用场景

• 1. 石油化工、炼油厂HIMax ESD紧急停车安全联锁系统。
  HIMax ESD emergency shutdown interlock system for petrochemical plant and refinery.

• 2. 天然气处理站、长输管线F&G火气探测与联锁保护系统。
  F&G fire and gas detection and interlock protection system for gas processing station and pipeline.

• 3. 煤化工、精细化工反应釜超温超压安全开关信号采集。
  Safety switch signal collection for reactor over-temperature and over-pressure in coal chemical plant.

• 4. 电厂锅炉、透平机组SIS保护系统阀位、限位开关信号采集。
  Valve position and limit switch signal acquisition for boiler and turbine SIS protection system.

• 5. 在役HIMax系统维保替换，故障DI卡备件更换与项目新增I/O扩容。
  Maintenance replacement for active HIMax system and I/O expansion for new project.

FAQ 常见问答

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