Honeywell 2MLR-DBST 输入/输出接口模块 是其 Safety Manager 安全控制器系列 中的关键组件，专为满足高可靠性、功能安全要求的工业场景设计。

核心特性

安全认证

符合 IEC 61508 SIL 3 或 TÜV AK6 安全标准，适用于危险区域的安全联锁控制。

通过 ATEX、IECEx 认证，支持防爆环境应用。

冗余设计

支持双通道冗余配置（如 2oo2 或 2oo3 架构），确保单点故障时系统无间断运行。

模块支持热插拔，维护时可在线更换，减少停机时间。

高可靠性 I/O

提供 16通道数字量输入/输出（具体通道数依型号而定），支持安全信号（如急停、安全光幕、阀门控制）。

输入支持 24V DC 冗余供电，输出支持故障安全型继电器或晶体管输出。

快速响应时间

输入信号响应时间 ≤ 10ms，输出动作时间 ≤ 20ms，满足紧急停车等实时性要求。

集成诊断功能

内置自诊断电路，实时监测 I/O 状态、电源及通信链路，支持预测性维护。

提供详细的故障日志，便于快速定位问题。

典型应用场景

石油化工：紧急停车系统（ESD）、火气系统（FGS）。

轨道交通：站台安全门控制、信号联锁。

电力能源：燃气轮机安全保护、变电站自动化。

制药与食品加工：安全联锁控制（如灭菌设备、包装线急停）。

技术规格（示例）

输入类型：数字量（支持干接点或 NAMUR 传感器）。

输出类型：故障安全型继电器（强制导向触点）或晶体管输出。

通信接口：支持 Modbus RTU、Ethernet/IP 或 Safety Manager 总线。

工作环境：温度范围 -40°C 至 70°C，防护等级 IP67（部分型号）。

供电：冗余 24V DC 电源输入，支持宽电压范围。

系统兼容性

集成平台：与 Honeywell Experion PKS 或第三方 DCS/PLC 系统无缝集成。

配置工具：通过 Safety Builder 软件进行逻辑组态、安全策略配置及仿真测试。

扩展能力：支持级联多个 I/O 模块，构建分布式安全网络。

用户关注点

合规性：满足 IEC 61511、ISA 84 等功能安全标准，降低合规风险。

维护便捷性：模块化设计支持快速更换，减少人工干预。

生命周期管理：Honeywell 提供长期备件支持及技术升级路径。

竞争优势

高可用性：冗余架构确保关键工艺的安全性和连续性。

灵活扩展：支持从小型安全回路到全厂级安全系统的扩展。

开放协议：兼容主流工业通信协议，降低系统集成复杂度。

The Honeywell 2MLR-DBST input/output interface module is a key component in its Safety Manager safety controller series, designed specifically to meet high reliability and functional safety requirements in industrial scenarios.

core features

safety certification

Compliant with IEC 61508 SIL 3 or T Ü V AK6 safety standards, suitable for safety interlock control in hazardous areas.

Through ATEX and IECEx certification, it supports applications in explosion-proof environments.

Redundant design

Support dual channel redundant configuration (such as 2oo2 or 2oo3 architecture) to ensure uninterrupted system operation in the event of a single point of failure.

The module supports hot swapping and can be replaced online during maintenance, reducing downtime.

High reliability I/O

Provide 16 channels of digital input/output (the specific number of channels depends on the model), supporting safety signals (such as emergency stop, safety light curtain, valve control).

The input supports 24V DC redundant power supply, and the output supports fault safe relay or transistor output.

fast response time

Input signal response time ≤ 10ms, output action time ≤ 20ms, meeting real-time requirements such as emergency parking.

Integrated diagnostic function

Built in self diagnostic circuit, real-time monitoring of I/O status, power supply, and communication links, supporting predictive maintenance.

Provide detailed fault logs for quick problem identification.

Typical application scenarios

Petrochemical industry: Emergency Shutdown System (ESD), Fire and Gas System (FGS).

Rail transit: platform safety door control, signal interlocking.

Electric energy: gas turbine safety protection, substation automation.

Pharmaceutical and food processing: safety interlock control (such as sterilization equipment, packaging line emergency stop).

Technical specifications (example)

Input type: Digital quantity (supports dry contacts or NAMUR sensors).

Output type: Fault safe relay (forced guiding contact) or transistor output.

Communication interface: Supports Modbus RTU, Ethernet/IP, or Safety Manager bus.

Working environment: Temperature range -40 ° C to 70 ° C, protection level IP67 (some models).

Power supply: Redundant 24V DC power input, supporting a wide voltage range.

system compatibility

Integration Platform: Seamless integration with Honeywell Expert PKS or third-party DCS/PLC systems.

Configuration tool: Use Safety Builder software for logical configuration, safety policy configuration, and simulation testing.

Scalability: Supports cascading multiple I/O modules to build a distributed secure network.

User Focus Points

Compliance: Meet functional safety standards such as IEC 61511 and ISA 84 to reduce compliance risks.

Maintenance convenience: Modular design supports quick replacement and reduces manual intervention.

Lifecycle management: Honeywell provides long-term spare parts support and technology upgrade paths.

competitive edge

High availability: Redundant architecture ensures the safety and continuity of critical processes.

Flexible Expansion: Supports expansion from small safety circuits to whole plant level safety systems.

Open protocol: Compatible with mainstream industrial communication protocols, reducing system integration complexity.