ICS TRIPLEX T8431處理器模塊,T8431產(chǎn)品重量
CPU366現(xiàn)場(chǎng)總線(xiàn)主機(jī)“模塊忙”COMMREQ狀態(tài)字響應(yīng)不工作當(dāng)兩個(gè)相同的COMMREQ同時(shí)發(fā)送時(shí)（即。未收到來(lái)自第一個(gè)COMMREQ的狀態(tài)字）上一個(gè)固件版本可能會(huì)錯(cuò)誤地導(dǎo)致COMMREQ狀態(tài)完成（COMMREQ狀態(tài)字=1）。帶有PROFIBUS固件v1.02（及更高版本）模塊忙的狀態(tài)字（COMMREQ狀態(tài)當(dāng)發(fā)送兩個(gè)相同的COMMREQ時(shí)，將返回文字=2）同時(shí)PROFIBUS主機(jī)無(wú)法發(fā)送DPV1奇數(shù)字節(jié)寫(xiě)入數(shù)據(jù)尺寸DP-V1
ICS TRIPLEX T8431處理器模塊寫(xiě)入請(qǐng)求COMMREQ的字14說(shuō)明應(yīng)be：要寫(xiě)入的數(shù)據(jù)的長(zhǎng)度x（以字或字節(jié)為單位）。最高位確定大小值是否解釋為字或字節(jié)。例如，值0x0005表示數(shù)據(jù)大小為五個(gè)字，0x8005表示數(shù)據(jù)大小為五個(gè)字節(jié)。PROFIBUS DP-V1通信：從未能響應(yīng)原因重復(fù)錯(cuò)誤狀態(tài)在以前的版本中，如果CPU366在等待響應(yīng)時(shí)超時(shí)從從從機(jī)到DP-V1讀或?qū)懻?qǐng)求COMMREQ，它報(bào)告DP-V1請(qǐng)求狀態(tài)為130十進(jìn)制–“主機(jī)已停止DP-V1自動(dòng)通信。”收到此錯(cuò)誤后，后續(xù)DP-V1 COMMREQ可以報(bào)告DP-V1請(qǐng)求狀態(tài)129十進(jìn)制–“主機(jī)即將停止DP-V1通信或DP-V1未處于打開(kāi)狀態(tài)州?！币宄藸顟B(tài)，請(qǐng)下載新硬件配置到CPU366，或者關(guān)閉并重新打開(kāi)CPU366。該問(wèn)題在版本1.02中得到糾正
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
