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Provides support for NI data acquisition and signal conditioning devices.
Provides support for Ethernet, GPIB, serial, USB, and other types of instruments.
Provides support for NI GPIB controllers and NI embedded controllers with GPIB ports.
修改时间 04-28-2016 09:31 PM
我使用OPC modbus 通过COM口与PLC通讯。当我把串口线拔掉再插上时，OPC与PLC的连接实际上是断开的，此时，labview程序（datasocket或共享变 量）无法与PLC通讯。只有当我手动重连接OPC或重启OPC时，labview与PLC才能通讯成功。请问各位大神，如何使OPC断开后自动连接PLC 或者，通过labview程序控制OPC重连PLC，先谢谢各位大神了！
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