描述
一、模块类型与功能
数字输入模块(DI3481)
-功能:将外部数字信号(如开关、传感器信号)转换为系统可识别信号,支持安全仪表系统(SIS)的实时监测。
-技术参数:
-通道数:16路隔离输入;
-输入电压:-40V至+30V;
-响应时间:<1ms;
-防护等级:IP20,符合SIL 3安全标准。
模拟输出模块(AO3481)
-功能:输出4-20mA或0-20mA模拟信号,控制执行器(如阀门、电机)的调节动作。
-技术参数:
-通道数:4路独立输出;
-精度:±0.15%FSR;
-环回电路:独立验证继电器状态;
-冗余设计:支持热插拔与在线维护。
通信模块(CM3481)
-功能:实现Triconex系统与外部设备的高速数据通信。
-技术参数:
-协议支持:Modbus、Ethernet/IP、Profibus DP;
-接口类型:以太网、串行端口;
-冗余功能:支持双链路备份。
二、核心优势与设计特点
三重模块化冗余(TMR)架构
-每个关键组件(处理器、I/O模块)三重化设计,确保单点故障不影响系统运行。
高环境适应性
-工作温度:-40°C至+70°C;
-抗干扰:光电隔离、浪涌保护,适用于高粉尘、电磁噪声环境。
智能化诊断
-实时监测硬件状态,提供故障报警与远程维护支持。


1.Module type and function
Digital input module(DI3481)
-Function:Convert external digital signals(such as switches,sensor signals)into system-identifiable signals,supporting real-time monitoring of safety instrumentation systems(SIS).
-Technical parameters:
-Number of channels:16 isolated inputs;
-Input voltage:-40V to+30V;
-Response time:<1ms;
-Protection level:IP20,complies with SIL 3 safety standards.
Analog output module(AO3481)
-Function:Output 4-20mA or 0-20mA analog signal to control the adjustment action of the actuator(such as valves,motors).
-Technical parameters:
-Number of channels:4 independent outputs;
-Accuracy:±0.15%FSR;
-Loopback circuit:Independently verify the relay status;
-Redundant design:supports hot plug and online maintenance.
Communication module(CM3481)
-Function:Realize high-speed data communication between Triconex system and external devices.
-Technical parameters:
-Protocol support:Modbus,Ethernet/IP,Profibus DP;
-Interface type:Ethernet,serial port;
-Redundant function:supports dual-link backup.
2.Core advantages and design characteristics
Triple Modular Redundancy(TMR)Architecture
-Triple design of each key component(processor,I/O module)ensures that a single point of failure does not affect the system operation.
High environmental adaptability
-Operating temperature:-40°C to+70°C;
-Anti-interference:photoelectric isolation,surge protection,suitable for high dust and electromagnetic noise environments.
Intelligent diagnosis
-Real-time monitoring of hardware status,providing fault alarm and remote maintenance support.

