ICS TRIPLEX T8431处理器模块,T8431产品重量
CPU366现场总线主机“模块忙”COMMREQ状态字响应不工作当两个相同的COMMREQ同时发送时（即。未收到来自第一个COMMREQ的状态字）上一个固件版本可能会错误地导致COMMREQ状态完成（COMMREQ状态字=1）。带有PROFIBUS固件v1.02（及更高版本）模块忙的状态字（COMMREQ状态当发送两个相同的COMMREQ时，将返回文字=2）同时PROFIBUS主机无法发送DPV1奇数字节写入数据尺寸DP-V1
ICS TRIPLEX T8431处理器模块写入请求COMMREQ的字14说明应be：要写入的数据的长度x（以字或字节为单位）。最高位确定大小值是否解释为字或字节。例如，值0x0005表示数据大小为五个字，0x8005表示数据大小为五个字节。PROFIBUS DP-V1通信：从未能响应原因重复错误状态在以前的版本中，如果CPU366在等待响应时超时从从从机到DP-V1读或写请求COMMREQ，它报告DP-V1请求状态为130十进制–“主机已停止DP-V1自动通信。”收到此错误后，后续DP-V1 COMMREQ可以报告DP-V1请求状态129十进制–“主机即将停止DP-V1通信或DP-V1未处于打开状态州。”要清除此状态，请下载新硬件配置到CPU366，或者关闭并重新打开CPU366。该问题在版本1.02中得到纠正
CPU366 PROFIBUS master
"Module Busy" COMMREQ
Status Word response does
not work
When two of the same COMMREQS are sent at the same time (i.e.
status word from 1st COMMREQ has not been received) previous
versions of firmware may erroneously result in a status of COMMREQ
COMPLETE (COMMREQ Status Word = 1). With PROFIBUS firmware
v1.02 (and later) a status word of MODULE BUSY (COMMREQ Status
Word=2) will be returned when two of the same COMMREQS are sent
at the same time.
PROFIBUS Master can't send
DPV1 Write data for odd byte
sizes
Description for Word 14 of the DP-V1 Write request COMMREQ should
be:
Length x of data to be written in words or bytes.
The uppermost bit determines whether the size value is interpreted as
words or bytes. For example, a value of 0x0005 indicates a data size of
five words while a value of 0x8005 indicates a data size of five bytes.
PROFIBUS DP-V1
Communications: Slave
Failure To Respond Causes
Repeated Error Status
In previous versions, if the CPU366 timed out waiting for a response
from a slave to a DP-V1 Read or Write request COMMREQ, it reported
a DP-V1 Request Status of 130 decimal – “Master has stopped DP-V1
communication automatically.” After receiving this error, subsequent
DP-V1 COMMREQs could report DP-V1 Request Status 129 decimal –
“Master is about to stop DP-V1 communication or DP-V1 is not in Open
