模塊F6705 德黑馬
模塊F6705 德黑馬
由于I/O點數(shù)較多、數(shù)據(jù)處理量大,故在美A-B公司的PLC5系列處理器中選用處理容量較大的PLC5/40處理挨??紤]到設(shè)施保護(hù)系統(tǒng)本身負(fù)責(zé)生產(chǎn)處理設(shè)備的安全保護(hù)功能,其自身可靠性非常重要,將處理器部分設(shè)計為冗余配置。兩臺處理通過DH+通信同步工作,但只有主處理器從遠(yuǎn)程I/O中讀寫數(shù)據(jù)。當(dāng)主處理器發(fā)生故障時,從處理器立即接管遠(yuǎn)程I/O,同時升級為主處理器。
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