Labview Modbus Serial Example
- Labview Modbus Rtu Example
- Labview Modbus Rtu Example
- Labview Modbus Serial Example Diagram
- Labview Modbus Serial Example Reference
- Labview Modbus Api
The original Modbus Protocol specification, published in 1979, describes Serial Communications where data is transmitted one bit at a time. A later update to the standard, called Modbus TCP, describes how to use Modbus in TCP/IP networks. The rest of this article describes the Modbus protocol is more detail: Modbus Data Types. How to Use Modbus With Arduino: Modbus is a serial communication standard and has become a de facto standard communication protocol and is now a commonly available means of connecting industrial electronic devices. In Modbus RTU and Modbus ASCII RS485 is used as the physical layer.
主要软件: LabVIEW Development Systems>>Full Development System
主要软件版本: N/A
主要软件修正版本: N/A次要软件: N/A
问题:
我想让 LabVIEW 通过Modbus和我的设备通信。可能实现吗？如果可以，我该怎样去做？
解答:
LabVIEW 8.0 和更高版本：
The LabVIEW 数据记录和监控 (DSC) 模块 LabVIEW 8.0 的 LabVIEW Real-Time (RT) 包括内置的通过Modbus I/O server支持的Modbus。Modbus I/O Server 可以让您非常容易得将 Modbus 寄存器值 和 共享变量连接到一起。 查看 Demo.
LabVIEW 7.1 及其之前版本：
- LabVIEW DSC Module
DSC Module 能够直接通过OPC Servers 来连接 LabVIEW DSC Module 和 Modbus 设备，例如Industrial Automation OPC Servers。
- LabVIEW RT
Modbus 是一个串口通信协议，因此通过串口编程使得 LabVIEW 和 Modbus 设备通信是可能的。同样的规则也适用于基于 TCP/IP 协议的 Modbus TCP/IP。Modbus LabVIEW Library 允许在您的LabVIEW 或 LabVIEW RT 7.1 应用程序中直接实现 Modbus 通信。
如果您是在 Windows下使用 LabVIEW ，您也可以用DataSocket和 OPC Server通信，以实现和Modbus的对话。如果您不能访问OPC Server，带有OPC 接口的National Instruments Industrial Automation Servers提供了很多协议的OPC 接口，其中包括Modbus。参照 examplescommopc.llb中有例子阐明了使用DataSocket和OPC Server通信的编程思想。
一个 National Instruments 联盟成员， Software Engineering Group (SEG), 提供BusVIEW（详见下面的链接），它为Windows和Mac OS平台下的LabVIEW提供直接的Modbus 支持。
相关链接:
Products & Services: NI Industrial Automation OPC Servers
Modbus OrganizationAlliance Member Directory: BusVIEW
附件:
Labview Modbus Rtu Example
报告日期: 11/07/2006最近更新: 11/08/2006
文档编号: 21A5S83E
| Version | 1.2.1.42 |
| Released | Jun 29, 2018 |
| Publisher | NI |
| License | NI Sample Code License |
| LabVIEW Version | LabVIEW>=12.0 |
| Operating System | Windows, Mac, and Linux |
| Project links |
Description
Modbus is a de facto standard for industrial communication which supports both serial- and TCP/IP-based communication. The core of the protocol consists of a function code (read or write) and data (what to read, what to write). Different packet forms are used, depending on the underlying bus, but that core set of information does not change.
This library allows for low-level access to that core function set and provides an API which includes both master (client) and slave device (server) functionality.
Release Notes
1.2.1.42 (Jun 29, 2018)Updated transaction ID shift register datatype to be U16
1.2.0.41 (Jun 19, 2018)Added error on transaction ID mismatch
1.1.5.39 (May 19, 2016)Added optimization to serial rtu buffering code to better account for packets we've already used for something.
Note, you must have the VIPM Desktop app to install this package into LabVIEW.