3BHE037864R0101 ABB控制器单元信息概述

一、基本信息

• 型号：3BHE037864R0101
• 品牌：ABB

二、技术规格与功能

1. 通讯功能：
• 支持Modbus RTU通讯协议，这是一种开放式主/从协议，常用于串口设备，特别是在工业自动化系统中。
• AC500可编程控制器上的com1和com2口（RS232或RS485）均支持Modbus RTU接口，作为标准或可选设备。
• 通讯方式通过轮询进行，即主站发送请求给从站并接收响应。
• 拓扑结构支持RS232点对点和RS485多点。RS232模式仅支持一个主站和一个从站，而RS485模式支持一个主站及最多31个从站。
• RS232模式电缆最大长度为15米，RS485模式下可达1.2公里。
2. 总线系统：
• 建立在ABB独有的FBP总线技术上，支持无需改变通讯接口即可按用户需求任意改变通讯总线。
• 支持Profibus DP或DeviceNet等多种总线协议，所有改变均自动识别，无需用户进行特殊设置。
3. 诊断功能：
• CPU的液晶屏上可显示详细的诊断信息，便于快速问题解答。
• 通讯模块上的四个LED灯可指示设备的状态。

三、应用领域

3BHE037864R0101 ABB控制器单元凭借其强大的通讯功能和灵活的总线系统，广泛应用于各种工业自动化和控制系统中，如制造业、能源领域、基础设施等。

3BHE037864R0101 Overview of ABB controller units

1. Basic information

Model: 3BHE037864R0101

Brand: ABB

2. Technical specifications and functions

Communication function:

Support for Modbus RTU, an open master/slave protocol commonly used in serial devices, especially in industrial automation systems.

Both com1 and com2 ports (RS232 or RS485) on AC500 programmable controllers support Modbus RTU interfaces as standard or optional devices.

Communication is carried out through polling, that is, the master station sends a request to the slave station and receives a response.

The topology supports RS232 point-to-point and RS485 multipoint. The RS232 mode supports only one master and one slave, while the RS485 mode supports one master and up to 31 slaves.

The maximum length of the cable is 15 meters in RS232 mode and up to 1.2 kilometers in RS485 mode.

Bus system:

Built on ABB's unique FBP bus technology, the communication bus can be changed according to user needs without changing the communication interface.

Supports a variety of bus protocols such as Profibus DP or DeviceNet, and all changes are automatically recognized without special Settings by the user.

Diagnostic functions:

The CPU LCD displays detailed diagnostic information for quick problem solving.

Four LED lights on the communication module indicate the status of the device.

3. Application fields

3BHE037864R0101 ABB controller unit with its powerful communication function and flexible bus system, widely used in a variety of industrial automation and control systems, such as manufacturing, energy fields, infrastructure and so on.