P92 P9220436070H接线模块,FOXBORO产品外观P92 P9220436070H
嵌入式PROFIBUS不支持DOIO功能此时的接口。DOIO函数块不返回使用嵌入式PROFIBUS作为目标执行时出错。获取设备状态COMMREQ获取设备状态COMMREQ用于获取详细状态关于PROFIBUS网络上特定设备的信息。在里面为了获得最新的数据，在初始版本，使其成为活动网络命令。在第一个发布时，此信息返回给基于应用程序的用户在缓冲数据上。在首次发布后，该数据将被激活从网络请求。
P92 P9220436070H接线模块如果用户应用程序使用Get设备状态COMMREQ通常有可能影响网络性能。总配置大小PLC CPU内的各种内存资源约束从设备的数量和类型以及它们可以提供的数据量与主人交流。可用于的内存量PROFIBUS配置受网络配置中的从属模块。CPU366提供最多8K字节（物理内存）的资源数据这是由每个从模块的GSD文件定义的，可以有所不同取决于模块的类型。PROFIBUS Data调整可在CPU 366上配置的数据量PROFIBUS网络提供高达2048字节的输入和2048字节输出。CPU366从停止运行模式，wordPID参数的偏移28阻塞将被清除。SP、PV和“PREV\u FILT\u DERIV\u TERM”无意中在word处重叠PID参数块的偏移28，导致在从停止切换到运行。通过消除参数重叠，问题得到了解决。参数PREV\u FILT\u DERIV\u TERM现在处理为字偏移量30。
DOIO functionality is not supported to the embedded PROFIBUS
interface at this time. The DOIO function block does not return an
error if it is executed using the embedded PROFIBUS as a target.
Get Device Status COMMREQ The Get Device Status COMMREQ is used to get detailed status
information about a particular device on the PROFIBUS network. In
order to get the most up to date data, a change was made after the
initial release to make this an active network command. In the first
release, this information was returned to the user application based
on buffered data. After the initial release, this data is actively
requested from the network. If the user application uses the Get
Device Status COMMREQ often, there is a potential to impact
network performance.
Total Configuration Size The various memory resources within the PLC CPU constrain the
number and type of slave devices and the amount of data they can
exchange with the master. The amount of memory available for the
PROFIBUS configuration is affected by the number and type of
slave modules in the network configuration.
The CPU366 provides up to 8K bytes (physical memory) of resource
data. This is defined by each slave module’s GSD file, and can vary
depending on the types of modules.
PROFIBUS Data Sizes The amount of data that can be configured on the CPU 366
PROFIBUS network provides up to 2048 bytes input and 2048
bytes output.CPU366 was switched from
STOP to RUN mode, word
offset 28 of the PID parameter
block would be cleared.
Two parameters ‘Upper Range for SP,PV’ and
‘PREV_FILT_DERIV_TERM’ inadvertently overlapped at word
offset 28 of the PID parameter block causing it to be cleared when
switched from STOP to RUN.
The problem has been fixed by removing the overlap of parameters.
The parameter PREV_FILT_DERIV_TERM is now addressed to
word offset 30.
