EPRO PR9376/010-011前置器電纜,PR9376/010-011說(shuō)明書(shū)
要采取的糾正措施類(lèi)型取決于應用程序。如果發(fā)生錯誤在梯形圖開(kāi)發(fā)的啟動(dòng)或調試階段，您應該驗證COMMREQ參數。如果在程序運行后立即發(fā)生錯誤，則情況也是如此被改進(jìn)的。但是，如果在已運行的經(jīng)驗證的應用程序中發(fā)生錯誤成功的話(huà)，問(wèn)題更可能與硬件有關(guān)。PLC故障表在對狀態(tài)字進(jìn)行故障排除時(shí)，應檢查可能的其他信息錯誤。
EPRO PR9376/010-011前置器電纜字10指定的內存塊的大小回應。COMMREQ在響應字段中具有內置的未來(lái)擴展空間。響應內存大?。òㄎ磥?lái)擴展空間）為9個(gè)字。在固件1.12的當前版本，響應大小為2個(gè)字，只有2個(gè)字是寫(xiě)入內存。用戶(hù)負責確保該區域足夠大，可以包含請求的數據，而不覆蓋其他應用程序數據。用戶(hù)是負責確保該區域足夠大，可以容納請求的數據不覆蓋其他應用程序數據。建議未來(lái)擴建初始分配空間，以避免將來(lái)固件升級使用2個(gè)以上時(shí)出現問(wèn)題回答的文字。（字11）從編號：字11指定COMMREQ所在設備的地址正在從檢索設備狀態(tài)。如果主設備或不在總線(xiàn)上的從設備的地址輸入時(shí)，將返回4的COMMREQ狀態(tài)字響應。確定啟動(dòng)要寫(xiě)入響應的本地PLC中的地址。輸入的值是內存類(lèi)型和模式從PLC內存開(kāi)始的偏移量（基于0）文字8中規定。該偏移量將以位、字節或字為單位，具體取決于指定模式（例如，如果字8=16，字9=2，則起始地址將be%I9）。值的有效范圍取決于PLC的內存范圍。
The type of corrective action to take depends upon the application. If an error occurs
during the startup or debugging stage of ladder development, you should verify the
COMMREQ parameters. The same is true if an error occurs right after a program is
modified. But, if an error occurs in a proven application that has been running
successfully, the problem is more likely to be hardware-related. The PLC fault tables
should be checked for possible additional information when troubleshooting Status Word
errors. Word 10 specifies the size of the memory block for
the response. The COMMREQ has built-in future expansion space in the response field.
The Response Memory Size (including the future expansion space) is 9 words. In the
current version of firmware 1.12, the response size is 2 words and only 2 words are
written to memory. The user is responsible for assuring that this area is large enough to
contain the requested data without overwriting other application data. The user is
responsible for assuring that this area is large enough to contain the requested data
without overwriting other application data. It is recommended that the future expansion
space be allocated initially, to avoid problems if future firmware upgrades use more than 2
words for the response.
(Word 11) Slave Number: Word 11 specifies the address of the device the COMMREQ is
retrieving device status from. If the address of the master, or a slave that is not on the bus
is entered, a COMMREQ Status Word response of 4 will be returned. determines the starting
address in the local PLC in which the response is to be written. The value entered is the
offset (0-based) from the beginning of PLC memory for the memory type and mode
specified in Word 8. This offset will be either in bits, bytes, or words
