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修改时间 07-21-2017 03:37 AM
新手刚学labview, 结合之前做的项目,labview要多个带Modbus RTU通讯协议的仪表通讯(rs485),请问怎样实现
修改时间 08-02-2017 02:46 AM
串口通信,用VISA
修改时间 08-03-2017 01:07 AM
您好!
如楼上所述,您可以使用NI-VISA来实现串口通讯的配置和调用。
NI-VISA:http://sine.ni.com/nips/cds/view/p/lang/zhs/nid/12145
您可以点开上面软件介绍页面中的资源页,浏览一些相关手册。
修改时间 08-14-2017 08:26 PM
我也是新手刚开始学labview,对于modbus这方面刚入手,我能参考一下labview与一个modbus通信的程序吗?
修改时间 08-14-2017 08:41 PM
在LabVIEW的帮助菜单中的“查找范例……”可以打开范例查找器。在硬件输入输出分类中有关于VISA和串口的一些范例,通过这些范例您应该可以迅速掌握基本的相关编程方法。
修改时间 09-13-2017 04:05 AM
Hi,
建议按照LabVIEW DSC模块,里面直接支持Modbus通信的库函数。只要向对应的地址处读数据或者写数据即可。
Xiaohui Wang
NI Field Sales Engineer
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