產(chǎn)品詳情介紹
Measurex 053629-00模塊控制器
內(nèi)部輸入/輸出字在07KR51-HSB內(nèi)部，存在多個內(nèi)部輸入/輸出字，用于管理主機和遠程熱備用中央單元之間的數(shù)據(jù)信息。例如，可以通過這些內(nèi)部變量設置從一個熱備用中央單元到另一個的內(nèi)部參數(shù)。這些內(nèi)部輸入/輸出字為%IW63.08至%IW63/15和%QW63.09至%QW63。15 1.4.3初始化熱備用主中央單元開始同步，通過遠程中央單元向熱備用發(fā)送一個幀，遠程中央單元的熱備用循環(huán)在幾個循環(huán)時間內(nèi)自行調(diào)整，以與熱備用主中心單元同步。熱備用遠程中央單元必須處于運行模式。同步可能需要幾分鐘的時間。同步完成后，主機和遠程熱備用中央單元中的位%O62.08設置為1，例如，該位%O62.08可用于主機和遠程兩個熱備用中央機組，以啟動程序操作，并帶有JUMP功能塊。在此同步階段，熱備用主中央單元執(zhí)行自己的程序。主控和遠程熱備用中央單元中的程序可能不同。主控和遠程熱備用中央單元的周期時間必須精確設置為相同的值。兩個熱備用中央單元、主單元和遠程單元在同一周期內(nèi)從CS31總線讀取所有數(shù)字和模擬輸入。只有控制CS31總線的中央單元在CS31總線上分配數(shù)字和模擬輸出。其他熱備用中央單元的輸出僅作為內(nèi)部變量分配。
診斷和功能
CS31總線上的所有診斷在熱備用中央單元、主單元和遠程單元上都可用，如遠程單元斷開、短路輸出等。如果熱備用遠程中央單元在一個周期內(nèi)沒有CS31總線的任何通信量，則熱備用功能啟動。這意味著熱備用遠程中央單元開始控制CS31總線上的輸入/輸出，將位%O62.08重置為0，并將位%O32.09設置為1，并根據(jù)當前程序的當前結果分配CS31總線的輸出。如果熱備用主中央單元出錯，熱備用遠程中央單元將在最多3個周期內(nèi)接管。這意味著熱備用遠程中央控制單元中的輸入在刷新之前的三個周期內(nèi)將保持相同的值。如果在CS31上管理輸出的兩個熱備用中央單元（主控和遠程）中的程序部分不同，則輸出狀態(tài)可能會出現(xiàn)中斷。在發(fā)生沖突的情況下，就像CS31總線上的兩個主控設備一樣，先前在遠程配置的熱備用中央單元將切換到熱備用遠程中央單元，即使它在主控操作中。如果中央單元主機處于停止模式，CS31總線輸出將重置為0。熱備用功能未激活。在主控和遠程熱備用中央單元中，位%O62.08重置為0。如果中央單元主機再次處于RUN模式，則主機和遠程熱備用中央單元中的位%O62.08重置為1，循環(huán)時間同步，但主機和遠程兩個熱備用中央機組中的變量值可能不同。如果熱備用遠程中央單元在一個周期內(nèi)CS31總線上沒有任何通信量，則熱備用功能啟動。這意味著熱備用遠程中央單元開始控制CS31總線上的輸入/輸出，將位%O62.08重置為0，并將位%O32.09設置為1，并根據(jù)當前程序的當前結果分配CS31總線的輸出。如果在CS31上管理輸出的兩個熱備用中央單元（主控和遠程）中的程序部分不同，則輸出狀態(tài)可能會出現(xiàn)中斷。
Internal input/output words
Inside the 07KR51-HSB, several internal input/output words exist for the management of data information between the both hot stand-by central units, master and remote. It is possible for example through these internal variables to set the internal parameters from one hot stand-by central unit to the other. These internal input/output words are %IW63.08 up to %IW63.15 and %QW63.08 up to %QW63.15 1.4.3 Initialization The hot stand-by master central unit starts synchronization, sends a frame to hot-stand-by remote central unit, the cycle in hot stand-by remote central unit is adjusted by itself on several cycles times to be synchronized with hot stand-by master central unit. The hot stand-by remote central unit has to be in RUN mode. The synchronization can take some minutes. When the synchronization is done, the bit %O62.08 is set to 1 in the both hot stand-by central units, master and remote, this bit %O62.08 can be used for example in the both hot stand-by central units, master and remote to start program operation, with JUMP function block. During this synchronization phase, the hot stand-by master central unit executes its own program. The program in both hot stand-by central units, master and remote can be different. The cycle times in the both hot stand-by central units, master and remote have to exactly set to the same value. The both hot stand-by central units, master and remote read all digital and analog inputs from CS31 bus in the same cycle time. Only the central unit, who controls the CS31 bus, assigns the digital and analog outputs on the CS31 bus. The outputs in the other hot stand-by central unit are only assigned as internal variables.
Diagnosis & functions
All diagnosis on CS31 bus are available on the both hot stand-by central units, master and remote like remote unit disconnected, short circuit outputs, etc... If the hot stand-by remote central unit does not any traffic on the CS31 bus during one cycle time, the hot stand-by functions start. That means that the hot stand-by remote central unit starts control of inputs/outputs on CS31 bus, reset the bit %O62.08 to 0 and set the bit %O62.09 to 1 and assigns the outputs on CS31 bus according to the current result of the present program. In case of an error in the hot stand-by master central unit, the hot stand-by remote central unit will take over within a maximum of 3 cycle times. That means that the inputs in the hot standby remote central unit will remain with the same value during three cycle times before being refreshed. If the part of program in the both hot stand-by central units, master and remote who manage the outputs on CS31 are different, it could happen a discontinuity in the status of outputs. In case of conflict, like two masters on CS31 bus, the hot stand-by central unit configured previously in remote will be switch in hot stand-by remote central unit even if it is in master operation. If the central unit master goes in STOP mode, the CS31 bus outputs are reset to 0. And the hot stand-by function is not activated. The bit %O62.08 is reset to 0 in the both hot stand-by central units, master and remote. If the central unit master is again in RUN mode, the bit %O62.08 is reset to 1 in the both hot stand-by central units, master and remote and the cycle times are synchronized but values of variables in the both hot stand-by central units, master and remote can be different. If the hot stand-by remote central unit does not any traffic on the CS31 bus during one cycle time, the hot stand-by functions start. That means that the hot stand-by remote central unit starts control of inputs/outputs on CS31 bus, reset the bit %O62.08 to 0 and set the bit %O62.09 to 1 and assigns the outputs on CS31 bus according to the current result of the present program. If the part of program in the both hot stand-by central units, master and remote who manage the outputs on CS31 are different, it could happen a discontinuity in the status of outputs.
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