GE DS200IAXSG1ABB涡轮控制系统
访问事件记录器信息：有两种方法可以访问事件记录器的信息：•仅访问您希望查看的记录和数据•访问整个事件记录。事件记录器按事件编号（1到40）进行索引。要访问特定事件，必须将事件编号写入PQM内存映射位置12C0h。特定于该事件的数据可以从存储器映射位置0AE0h开始读取。要以这种方式读取事件记录器，必须知道特定的事件编号。但是，此事件编号通常未知，必须读取整个事件记录。最简单的方法是读取PQM内存映射位置0AD0h（自上次清除以来的事件总数），并循环通过0AD0h中的值指示的每个事件编号，读取与每个事件相关的相关数据。这需要1到40次串行读取，每次读取170字节。一旦获得该数据，就可以根据第7.3节：Modbus内存映射中所述的每个值的格式进行解释。需要注意的是，一些内存映射参数的长度为32位（4字节），需要2个寄存器来包含其值，一个用于两个高字节，另一个用于二个低字节。
ACCESS TO EVENT RECORDER INFORMATION: There are two ways to access Event Recorder Information: • Access only the Records and data you wish to view • Access the entire Event Record. The Event Recorder is indexed by Event Number (1 to 40). To access a specific Event, the Event Number must be written to the PQM memory map location 12C0h. The data specific to that Event can be read starting at memory map location 0AE0h. The specific Event Number must be known to read the Event Recorder in this fashion. However, this Event Number is usually not known and the entire Event Record must be read. The easiest way to do this is to read the PQM Memory Map location 0AD0h (Total Number of Events Since Last Clear) and loop through each Event Number indicated by the value from 0AD0h, reading the associated data pertaining to each Event. This requires from 1 to 40 serial reads of 170 bytes each. Once this data is obtained, it can be interpreted based upon the format of each value as described in Section 7.3: Modbus Memory Map. It is important to note that some memory map parameters are 32 bits (4 bytes) long and require 2 registers to contain their value, one for the two high bytes and one for the two low bytes.
