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


Is There a Way to Notify a Server on a Link's Output Side That the Input Side is in Error?


Last Update: 2018/11/7

Problem:
When using LinkMaster to bridge data from a driver for KEPServerEX to another server, there needs to be a way to notify the other server when the input data is bad so that processing can be paused.

Solution:
If the input's problem is that the device is no longer responding to data requests, KEPServerEX will set the communication's _Error Tag to indicate that the device is not responding. This _Error Tag is located in the _System folder. When communications to the device are good, the tag will have a value of 0. When communications to the device are bad, the tag will have a value of 1.

Note 1: KEPServerEX version 4.190.341 added a new tag called _NoError that is the opposite of the _Error Tag. When communications to the device are good, the tag will have a value of 1. When communications to the device are bad, the tag will have a value of 0.

Note 2: There are server-level tags located in the _System folder that display the current system time in hours, minutes, and seconds. The _Time_Second Tag should change every second and can be used as an indication of the server's general health.

Related Products
LinkMaster