ABB HIEE200048R1 UT7378B-E模块
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ABB HIEE200048R1 UT7378B-EP（电源）绿色正常状态–亮起时，表示CPU DC/DC转换器正在生成有效的+5 V和+3.3 V DC电源电压。无软件控制。B（电池）绿色正常状态–当内部或外部电池电压高于3.1 V时亮起。LED由软件电池电压测试（1）控制。Tx黄-绿（2）数据传输（4），CN1+CN2和COM3（3）+COM4与Tx流量同步闪烁Rx黄-绿。表示主CPU处于冗余配置。由软件控制。当CPU在冗余配置和同步状态下运行时，双黄色亮起。（1） 软件通过专用LED控制输入执行循环电池电压电平测试。电池在断电期间为应用程序内存和实时时钟提供备用电源。可以通过PM8xx盖板或外部连接到外部电池连接器来访问电池。蓄电池电压由软件检查。内部和外部电池的电压都是通用的。因此，在使用外部电池时，应拆下内部电池，因为两个电池并联将导致容量大大降低。（2） 仅适用于ABB HIEE200048R1 UT7378B-E（3）对PM891无效（4）仅CN1适用于ABB HIEE200048R1 UT7378B-EA。不要连接到CN2。ABB HIEE200048R1 UT7378B-E
ABB HIEE200048R1 UT7378B-EP(ower) Green Normal state – ON When lit, indicates that the CPU DC/DC converter is generating valid +5 V and +3.3 V DC supply voltages. No software control. B(attery) Green Normal state – ON Lit when internal or external battery voltage is above 3.1 V. The LED is controlled by a software battery voltage test(1). Tx Yellow Green(2) Data Transmission(4), CN1 + CN2 and COM3(3) + COM4 Flashes in synchronization with Tx traffic Rx Yellow Green(2) Data Reception(4), CN1 + CN2 and COM3(3) + COM4 Flashes in synchronization with Rx traffic Valid for ABB HIEE200048R1 UT7378B-EPRIM(ary) Yellow Lit in single and redundant configuration. Indicates Primary CPU in redundant configuration. Controlled by software. DUAL Yellow Lit when the CPU is running in redundant configuration and synchronized state.(1) The software performs cyclic battery voltage level tests via a dedicated LED control input. The battery provides back-up power for both the application memory and the real time clock during power down. The battery is either accessible via the PM8xx cover panel or externally connected to the external battery connector. Battery voltage is checked by the software. Voltage is common for both the internal and external battery. For this reason the internal battery should be removed when using the external battery, since having two batteries connected in parallel will result in greatly reduced capacity. (2) Only for ABB HIEE200048R1 UT7378B-E(3) Not valid for PM891 (4) Only CN1 for PM851/PM851A. Do not connect to CN2.ABB HIEE200048R1 UT7378B-E
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