ABB DSBC174 3BSE012211R1 串行背板接口模块

这是 ABB Advant OCS（开放控制系统） 中使用的 S100 I/O 总线串行背板接口模块，属于总线耦合器，负责将 I/O 模块连接到背板总线上实现数据通信。

核心参数

关键说明

• 作用：DSBC174 本身不处理 I/O 信号，而是作为 背板总线的通信桥梁，让挂接在同一背板上的 I/O 模块（如 DSDI110A、DSDO110、DSAI130 等）能够与 CPU（如 PM645、AC500 等）进行数据交换。
• 不可替代场景：如果背板上的 DSBC174 损坏，整个背板上的 I/O 模块都将无法通信，必须更换。

• 关联模块：

  模块	件号	功能
  DSBC173	57310001-KH	S100 总线模块（类似功能，注意区分版本）
  DSBC176	3BSE019216R1	另一款背板接口模块
  CI856K01	—	S100 I/O 通信模件（上位通信用）

• 

• 确认你的系统是 Advant OCS 还是 AC500/AC800M，DSBC174 专用于 OCS 的 S100 总线架构，不能直接用于 AC800M 的 CI 总线系统。
• 更换时注意检查背板插槽是否有物理损坏，避免新模块再次烧毁。
• 如果整块背板多个模块同时故障，优先排查背板供电和 DSBC174 本身，而非逐一换 I/O 模块。

ABB DSBC174 3BSE012211R1 Serial Backplane Interface Module

This is the S100 I/O bus serial backplane interface module used in ABB Advant OCS (Open Control System), which belongs to the bus coupler and is responsible for connecting the I/O module to the backplane bus for data communication.

core parameters

Project specifications

Model DSBC174

Product Code 3BSE012211R1

Old part number 57310001-KH

Functional serial backplane interface/bus coupler

Belonging to ABB Advant OCS/S100 I/O bus series

Communication method: Serial Backplane Bus

Installation method: rail installation (backplane slot)

Origin Switzerland

Key Instructions

Function: The DSBC174 itself does not process I/O signals, but serves as a communication bridge for the backplane bus, allowing I/O modules (such as DSDI110A, DSDO110, DSAI130, etc.) attached to the same backplane to exchange data with CPUs (such as PM645, AC500, etc.).

Irreplaceable scenario: If the DSBC174 on the backplane is damaged, the entire I/O module on the backplane will be unable to communicate and must be replaced.

Related modules:

Module part number function

DSBC173 57310001-KH S100 bus module (similar function, pay attention to distinguishing versions)

DSBC176 3BSE019216R1 Another Backplane Interface Module

CI856K01-S100 I/O communication module (for upper communication)

Please confirm whether your system is Advant OCS or AC500/AC800M. The DSBC174 is dedicated to the S100 bus architecture of OCS and cannot be directly used for the CI bus system of AC800M.

When replacing, pay attention to checking whether the backplane slot is physically damaged to avoid burning out the new module again.

If multiple modules on the entire backplane fail simultaneously, prioritize troubleshooting the backplane power supply and DSBC174 itself, rather than replacing the I/O modules one by one.