使用搜索功能查看 Kepware 的信息库,其中包含 500 多篇知识库文章。缩小搜索结果范围,或在下面的搜索字段中输入您的查询。

或者,如果您无法找到解决方案,我们还有另一个资源:我们的 PTC eSupport Portal。 如果系统提示您登录 eSupport Portal,您可以使用“我的 Kepware”凭据。需要一个“我的 Kepware”帐户吗?在此处创建

搜索解决方案结果:
View All Solutions

Kepware Knowledge Base: Solution


Connecting a PC with Multiple NICs to a Remote OPC DA Server


Last Update: 2018/11/7

This situation is applicable for users that have two or more Network Interface Cards (NICs) on a Windows PC. These NICs may be connected to the same network or to separate networks.

For example, NIC 1 might be on a private domain and NIC 2 on a public domain. Users want to use OPC DA to connect this multiple NIC PC to another application on a remote computer. This remote computer must be on the same network as one or both of the NICs. OPC DA uses Microsoft's Distributed Component Object Model (DCOM) to make this connection.

  • If both NICs are on the same network, DCOM will look for the remote PC node using all NICs on that network (in Windows 2000 and higher). The OPC DA connection would be made through the NIC that was first in the network bind order, or the first NIC that successfully connected to the remote PC.
  • If the two NICs point to separate, non-overlapping networks, the connection will be made via the NIC on that network. For example, if the remote PC is on the private domain, the OPC DA connection would be made using the NIC on the private domain.
Tags
DCOM

Related Products
KEPServerEX, OPC DA Client

Related Protocols
OPC Data Access (DA)