GE DS200LPPAG1AAA电路板
类2——表示类2事件可用0 3类3——表示类3事件可用1 3缓冲区溢出——通常表示主机没有足够频繁地获取事件数据。使用对象12控制下表中列出的点时，应遵守以下限制。1.首先选中计数字段。如果为零，将接受命令，但不会采取任何操作。如果此字段为非零，则无论其值如何，命令都将执行一次。2.然后检查对象12的控制代码字段：•NUL代码将导致命令被接受，而不采取任何行动。•“脉冲开启”（1）代码对所有点都有效。这用于激活与该点相关的功能（例如重置）。•所有其他代码无效，将被拒绝。•队列、清除和跳闸/关闭子字段被忽略。3.“打开时间”和“关闭时间”字段被忽略。收到“脉冲开启”代码后立即生效。因此，时间是不相关的。
Class 2 -- indicates that class 2 events are available 0 3 Class 3 -- indicates that class 2 events are available 1 3 Buffer Overflow -- generally indicates that the host has not picked up the event data often enough The following restrictions should be observed when using object 12 to control the points listed in the following table. 1. The Count field is checked first. If it is zero, the command will be accepted but no action will be taken. If this field is non-zero, the command will be executed exactly once regardless of its value. 2. The Control Code field of object 12 is then inspected: • A NUL Code will cause the command to be accepted without any action being taken. • A Code of “Pulse On” (1) is valid for all points. This is used to activate the function (e.g., Reset) associated with the point. • All other Codes are invalid and will be rejected. • The Queue, Clear, and Trip/Close sub-fields are ignored. 3. The On Time and Off Time fields are ignored. A “Pulse On” Code takes effect immediately when received. Thus, the timing is irrelevant.
