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This switch is used to start and stop the program sequence. In redundant mode, the position of the RUN/STOP switch on the active AC 900F is used.
此開關(guān)用于啟動和停止程序序列，也就是決定要不要運(yùn)行程序序列。主AC900F控制器上RUN/STOP切換開關(guān)在使用，也就是說去撥備用控制器上這個開關(guān)時不能啟動/停止程序序列的。
Both controllers perform the command (Run or Stop). The LED display on the Primary shows the current status. In the case of a redundancy change-over, the last status is retained irrespective of the RUN/STOP switch position.
兩個控制器執(zhí)行命令（運(yùn)行或者停止）。主控制器上的LED指示燈顯示當(dāng)前狀態(tài)，當(dāng)冗余切換時，無論運(yùn)行/停止切換位置如何，都保留最后一個狀態(tài)。
Change-over to Run 轉(zhuǎn)換到運(yùn)行
Normal operation. The program sequence is started. If the module is reset and a self-test is subsequently started, no configuration menu appears at the diagnostic interface。
正常操作。程序序列已啟動。如果模塊重置，隨后開始自檢，則診斷接口中不會顯示配置菜單。 Change-over to Stop 轉(zhuǎn)換到停止
The program sequence is stopped. If the module is reset and a selftest is subsequently started, the configuration menu appears at the diagnostic interface.
程序序列已停止。如果模塊重置，隨后開始自檢，則配置菜單將顯示在診斷界面。 TOGGLE switch
主備切換開關(guān)
With a redundant AC 900 F configuration in synchronized state, a change-over of the TOGGLE switch on the Primary produces the following effect: The previous Secondary changes immediately to Primary and the previous Primary to Secondary without requiring any system rebooting. Any actuation of the TOGGLE switch on the Secondary will be ignored.
配置為同步狀態(tài)下的冗余AC 900F，“主”控制器上的切換開關(guān)撥動或產(chǎn)生下面的效果：以前為備用的（控制器）立即成為主（控制器），以前為主（控制器）的立即成為備（控制器），這無需任何系統(tǒng)重啟。在備用控制器上撥這個開關(guān)將被忽略。
RESET switch
重啟開關(guān)
The RESET switch is used to reset the AC 900F. Depending on the system status,either a warm or a cold start is initiated. A “tool“ (e.g. a ball pen or similar) is required to actuate the RESET switch。
重啟開關(guān)用于AC900F的重啟。根據(jù)系統(tǒng)狀態(tài)，要么是熱啟動，要么是冷啟動。執(zhí)行 RESET 開關(guān)需要'工具'（例如球筆或類似工具，這應(yīng)該是為了防止誤觸）
When the RESET switch is pressed for a specified time, the following functions will be released:
當(dāng)重啟開關(guān)持續(xù)按下以下時間時，下列功能將執(zhí)行
Single controller
單控制器
< 4 s = Warm start
小于4秒，熱啟動
> 4 s = Cold start
大于等于4秒，冷啟動
Redundant controller
冗余控制器
< 4 s = no function
小于4秒，啥也不做
> 4 s = redundancy change-over and cold start of the controller with actuated RESET switch
大于等于4秒，冗余切換，該控制器冷啟動
SD card reader
SD讀卡器
The SD card reader is used for data backup, for restoring the application as well as for updating the firmware. Additional to this, a backup of the project file can be exported from Freelance Engineering to the SD Card (details see Engineering Manual System Configuration). All high-quality SD cards with 1 GB up to 32 GB are supported. With an appropriate adapter, mini and micro SD cards can be used as well.
SD讀卡器用于數(shù)據(jù)備份，為恢復(fù)應(yīng)用程序和升級固件。此外，項(xiàng)目文件的備份能夠沖工程師站導(dǎo)出到SD卡。（詳細(xì)信息請參閱工程手冊系統(tǒng)配置）支持從1GB到32GB的高質(zhì)量SD卡。使用合適的適配器，迷你和微型 SD 卡也可以使用。
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