HIMA Z7138電纜,Z7138使用尺寸
PROFIBUS讀/寫請求COMMREQ數(shù)據(jù)大小讀請求和寫請求傳輸?shù)臄?shù)據(jù)大小COMMREQ始終以文字形式指定。IC693CPU366不能傳輸字節(jié)大小不能被2整除的數(shù)據(jù)。子板表示PROFIBUS子板是否從接收到無效配置機器版，子板狀態(tài)可能會以CONFIG_失敗，只能通過通電循環(huán)恢復(fù)。PROFIBUS LED將繼續(xù)閃爍，表示沒有配置存在。
HIMA Z7138電纜帶短路的LED操作電路總線當PROFIBUS系統(tǒng)的A線和B線短接在一起時PROFIBUS主機內(nèi)將出現(xiàn)總線短路情況。此情況將由位于上的COM和SYS LED指示模塊的前部。只要一個總線短路仍然存在。COM LED將為綠色并閃爍紅色取決于短路的嚴重程度。原因是總線控制器仍在嘗試通信。短路條件當PLC處于運行狀態(tài)并與至少一個從機。CPU366超過5秒的預(yù)熱通電時間。平均值使用CPU366觀察到的預(yù)熱通電時間約為7秒。后子板丟失快速硬件配置存儲重復(fù)下載硬件配置的速度比子板可以處理PROFIBUS配置（在LED指示網(wǎng)絡(luò)正常），最終可能導致子板故障。如果出現(xiàn)這種情況，請關(guān)閉CPU以進行恢復(fù)。
PROFIBUS Read/Write
Request COMMREQ Data
Size
The size of data transferred by the Read Request and Write Request
COMMREQs is always specified in words. The IC693CPU366 cannot
transfer data with a byte size that is not evenly divisible by two.
Daughterboard States If the PROFIBUS daughterboard receives an invalid configuration from
Machine Edition, the daughterboard state may end up in
CONFIG_FAILED, which can only be recovered from by a power cycle.
The PROFIBUS LED will continue to blink, indicating that no
configuration exists.
LED Operation with Short
Circuit Bus
When the A and B lines of the PROFIBUS system are shorted together
a bus short circuit condition will occur within the PROFIBUS Master.
This condition will be indicated by the COM and SYS LEDs located on
the front of the module. The SYS LED will be Solid Red as long as a
bus short remains. The COM LED will be Green and Flash RED
depending on the severity of the short. The reason for this is that the
bus controller is still attempting to communicate. Short circuit conditions
that can occur when the PLC is in Run and actively communicating with
at least one slave.The CPU366 exceeds the 5-second warm power up time. The average
warm power up time observed with the CPU366 is approximately 7
seconds.
Loss of daughterboard after
rapid HW Config Stores
Repeatedly downloading a hardware configuration faster than the
daughterboard can process the PROFIBUS configuration (before the
LEDs indicate network OK), can eventually lead to a loss of
daughterboard fault. Should this occur, power cycle the CPU to recover.
