A-B 81001-956-63-R控制板
1.產(chǎn) 品 資 料 介 紹：
中文資料：
為了提供對(duì)惡意數(shù)據(jù)包故障的容忍度，A-B 81001-956-63-R可以作為兩個(gè)惡意主機(jī)之一運(yùn)行。當(dāng)數(shù)據(jù)包從一個(gè)節(jié)點(diǎn)傳遞到另一個(gè)節(jié)點(diǎn)時(shí)，流氓主機(jī)會(huì)更改每個(gè)數(shù)據(jù)包。當(dāng)數(shù)據(jù)包第二次返回到流氓主機(jī)時(shí)，流氓主機(jī)識(shí)別出它是一個(gè)流氓數(shù)據(jù)包，并將其從環(huán)中移除。當(dāng)檢測(cè)到流氓數(shù)據(jù)包時(shí)，會(huì)在本地中斷狀態(tài)寄存器（LISR）中設(shè)置流氓數(shù)據(jù)包故障標(biāo)志。流氓分組故障位的斷言可以可選地?cái)嘌訴MEbus中斷，以通知主機(jī)該條件存在。
盜賊大師0和盜賊大師1被提供來(lái)相互交叉檢查。Rogue Master 0啟用從E5引腳3和4移除跳線分流器。Rogue Master 1通過(guò)從E5引腳5和6移除跳線分流器來(lái)啟用。請(qǐng)參閱“A-B 81001-956-63-R用戶可配置開(kāi)關(guān)和跳線的位置
注意：網(wǎng)絡(luò)中的兩個(gè)板不應(yīng)設(shè)置為同一個(gè)流氓主機(jī)。否則，兩者中的一個(gè)將錯(cuò)誤地刪除另一個(gè)發(fā)起的數(shù)據(jù)包
英文資料：
To provide tolerance to rogue packet faults, the A-B 81001-956-63-R can operate as one of two rogue masters. A rogue master alters each packet as it passes from one node to another. When the packet returns to the rogue master a second time, the rogue master recognizes that it is a rogue packet and removes it from the ring. When a rogue packet is detected, a rogue packet fault flag is set in the Local Interrupt Status Register (LISR). The assertion of the rogue packet fault bit may optionally assert a VMEbus interrupt to inform the host that the condition exists.
Rogue Master 0 and Rogue Master 1, are provided to cross check each other. Rogue Master 0 is enable removing the jumper shunt from E5 pins 3 and 4. Rogue Master 1 is enable by removing the jumper shunt from E5 pins 5 and 6. See “A-B 81001-956-63-R Location of User Configurable Switches and Jumpers
NOTE: Two boards in the network should not be set as the same rogue master. Otherwise, one of the two will erroneously remove packets originated by the other
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