基础信息 Basic Information

产品类型介绍 Module Type Introduction

核心功能 Core Functions

1. PROFIBUS-DP 主站调度，自动轮询现场所有 DP 从站，下发控制指令、上传工艺采集数据
2. PROFIBUS-DP master scheduling, automatically poll all field DP slaves, send control commands and upload process data
3. 兼容 DP-V1 协议，支持 HART 仪表、智能阀门定位器、变频器、远程 IO 等多类从站设备
4. Compatible with DP-V1 protocol, support HART instruments, smart valve positioners, VFDs, remote IO and other slave devices
5. 总线电气隔离设计，系统侧与现场总线信号隔离，抑制现场强电磁干扰，保护主控单元
6. Galvanic isolation design between system side and field bus, suppress strong field electromagnetic interference and protect main controller
7. 支持双 ALP121 冗余热备，主卡故障时备卡毫秒级无缝切换，无通讯中断风险
8. Support dual ALP121 hot standby redundancy, backup module takes over within milliseconds without communication interruption
9. 内置硬件故障自诊断，面板 LED 指示灯实时显示总线故障、断线、从站失联、模块异常
10. Built-in hardware self-diagnosis, front panel LED indicators display bus fault, wire break, slave disconnection and module abnormality in real time
11. 单控制器最多搭载 32 块 ALP121，灵活扩展多条独立 PROFIBUS 总线，满足大规模现场设备组网
12. Max 32 ALP121 modules per controller, flexibly expand multiple independent PROFIBUS buses for large-scale field equipment networking
13. 可搭配 DP/PA 耦合器，接入 PROFIBUS-PA 本安防爆仪表，适配油气、化工防爆区域工况
14. Matched with DP/PA coupler to connect PROFIBUS-PA intrinsically safe instruments, suitable for oil, gas and chemical hazardous area conditions