REF542PLUS  多功能保护和开关控制装置 多功能保护和开关控制装置

REF542PLUS HMI带有一个背光LCD、8个按钮、几个LED灯和一 个电子钥匙感应器。这个国际通用的新版HMI是REF542plus产品发布2.5版本 的一部分。 显示分辨率为320x240（QVGA）并且支持整套Unicode字符集。因而可以清晰 地显示所有语言，例如中文。该HMI可同时使用两种不同的语言。使用相关 的操作工具，可以将本土语言设置为第一语言，英语就随之成为第二语言。 您可以轻而易举地切换HMI的显示语言。

分闸：分闸所选对象。 合闸：合闸所选对象。 选择：选择对象。被选择的对象将高亮显示。 CB紧急分闸：允许独立于所选的控制模式分闸断路器。 当与常规分闸按钮同时按下时， 允许独立于所选的控制模式分闸断路器。 通过操作工具在设备中启用该特征。 电子钥匙感应器：这是电子钥匙的感应器。感应器可以自动探测出插入了 哪一把钥匙。这两把钥匙通常标有“保护”和“控制”字样以示区分。  保护钥匙：专用于保护模式，在此模式下其允许修改与保护功能相关的参 数和其它功能。 控制钥匙：专用于控制模式，其允许修改REF542PLUS 的操作模式。不同 的操作模式规定了通过不同的REF542PLUS接口（HMI与SCADA）访问一次 设备。需要的时候，可以提供访问两种模式的超级用户钥匙。进入调试测 试模式也需要超级用户钥匙。出于限值访问的目的，可为每一台 REF542PLUS用户定制存储于钥匙中的密码。 SLD视图：这是LCD的图形部分。这部分显示了开关装置的单线图。每次操 作后，一次设备的状态会动态更新。例如，断路器分闸，这在它的图表上 会反映出来。

REF542PLUS  多功能保护和开关控制装置 多功能保护和开关控制装置

The REF542PLUS HMI features a backlit LCD, eight buttons, several LED lights, and an electronic key sensor. This new, internationally available HMI is part of the REF542plus product release 2.5. The display resolution is 320x240 (QVGA) and the full Unicode character set is supported. Therefore, all languages, such as Chinese, can be clearly displayed. The HMI can be used in two different languages simultaneously. Using the relevant operating tools, the native language can be set as the first language, and English will then become the second language. You can easily switch the display language of the HMI.

Switch: Switch the selected object. Closing: Closes the selected object. Select: Select an object. The selected object will be highlighted. CB Emergency switching: Allows the circuit breaker to be switched off independently of the selected control mode. When pressed at the same time as the regular switching button, the circuit breaker is allowed to be switched off independently of the selected control mode. Enable this feature in the device through the operation tool. Electronic key sensor: This is the sensor of the electronic key. The sensor automatically detects which key is inserted. The two keys are usually marked with the words "protection" and "control" to distinguish them. Protection Key: Dedicated to protection mode, in which it allows modification of parameters and other functions related to protection functions. Control key: Dedicated to the control mode, it allows the REF542PLUS to modify the mode of operation. Different modes of operation specify access to the device through different REF542PLUS interfaces (HMI and SCADA). Superuser keys to access both modes can be provided when required. A superuser key is also required to enter debug test mode. For limit access purposes, the password stored in the key can be customized for each REF542PLUS user. SLD View: This is the graphic part of the LCD. This section shows a single line diagram of the switching device. After each operation, the status of a device is dynamically updated. For example, a circuit breaker opens, which is reflected in its diagram.