您可以订阅更改属性的最长时间是多少？
What is the longest you can susbcribe to change to an attribute?
所以我正在做一个项目，要求 cygnus 订阅一个属性至少 2 或 3 个月。我发现使用 "P1M" 工作的最长时间是 1 个月。有什么办法可以延长吗？
不是 Orion 方面的专家（我是主要的开发人员或 Cygnus :)）但是据我所知，您可以订阅多年。您可以在 readthedocs:
找到它
Subscriptions have a duration, specified using the ISO 8601 standard format. Once that duration is expired, the subscription is simply ignored (however, it is still stored in the broker database and needs to be purged using the procedure described in the administration manual). You can extend the duration of a subscription by updating it, as described later in this document. We are using "P1M" which means "one month".
link 持续时间格式：https://en.wikipedia.org/wiki/ISO_8601
所以我正在做一个项目，要求 cygnus 订阅一个属性至少 2 或 3 个月。我发现使用 "P1M" 工作的最长时间是 1 个月。有什么办法可以延长吗？
不是 Orion 方面的专家（我是主要的开发人员或 Cygnus :)）但是据我所知，您可以订阅多年。您可以在 readthedocs:
找到它Subscriptions have a duration, specified using the ISO 8601 standard format. Once that duration is expired, the subscription is simply ignored (however, it is still stored in the broker database and needs to be purged using the procedure described in the administration manual). You can extend the duration of a subscription by updating it, as described later in this document. We are using "P1M" which means "one month".
link 持续时间格式：https://en.wikipedia.org/wiki/ISO_8601