GE DS200EXPSG1ABB扩展输入卡
日志将覆盖标题后的第一个记录，并继续覆盖后续记录，直到用户希望停止记录数据。日志将作为时间上的数据滚动窗口，根据记录量乘以日志时间间隔在可用内存总空间中允许的时间进行回溯。访问数据日志信息数据日志可以通过两种方式访问：通过串行端口使用EnerVista PQM设置。通过EnerVistaPQM设置访问如第6章：软件所述。通过串行端口手动访问，如下所示：•在PQM内存映射中将您希望访问的数据块设置为1268h•从数据块中的64个寄存器读取所需的数据量以这种方式访问数据日志假设用户知道他们希望访问哪个数据块，并根据他们选择的参数知道每个记录的大小。
The Log will overwrite the first Record after the Header and continue to overwrite the Records to follow until the user wishes to stop logging data. The Log will act as a rolling window of data in time, going back in time as far as the amount of records times the Log Time Interval will allow in the total space of memory available. ACCESSING THE DATA LOG INFORMATION The Data Log can be accessed in two ways: using EnerVista PQM Setup via the serial port. Access via EnerVista PQM Setup is as described in Chapter 6: SOFTWARE. Access is manually via the serial port as follows: • Set the Block of data you wish to access at 1268h in the PQM Memory Map • Read the required amount of data from the 64 Registers in the Block Accessing the Data Log in this manner assumes that the user knows which Block they wish to access, and knows the size of each Record based upon the parameters they have selected to log.
