57310255-AL ABB模块卡件自动化工控设备
驱动DSI电路
它通过 顶部12针板卡边缘连接器（P1）连接。I/O扩展总线INFI 90 OPEN I/O扩展总线是一条高速同步并行总线。它提供了控制模块和I/O模块之间的通信路径。控制模块提供控制功能，DSI模块向控制模块提供输入。DSI和控制模块的P2卡边缘连接器连接到总线。I/O扩展器总线是位于模块安装单元（MMU）背板上的并行信号线。放置在MMU背板连接插座中的12位双列直插式测试仪连接控制模块和I/O模块之间的总线。电缆组件可以将总线扩展到六个MMU。控制模块及其I/O模块在过程控制单元（PCU）内形成单独的子系统。控制和I/O模块子系统之间的I/O扩展器总线必须分开。将双列直插式测试仪插座留空或不使用电缆连接MMU将其分开。通用I/O扩展器总线接口DSI使用自定义门阵列来执行I/O扩展机总线接口功能。所有的控制逻辑和通信协议都内置在集成电路（IC）中。该IC提供以下功能：•地址比较和检测。•功能代码锁存和解码。•读取选通脉冲生成。•总线信号的数据线滤波。•车上巴士司机。
静电敏感设备
安装和拆卸模块时，请使用静电接地腕带。静电放电可能会损坏机柜中模块上的静电敏感设备。使用静电敏感设备时，使用接地设备和静电安全规程。1.使用静电屏蔽袋。将模块放在防静电袋中，直到准备好将其安装到系统中。保存袋子以备将来使用。2.打开前的地袋。在打开装有静电敏感装置的组件的袋子之前，将其接触到设备外壳或地面以均衡电荷。3.避免接触电路。通过边缘处理组件；避免接触电路。4.避免静电敏感设备的部分连接。使用模块前，请确认所有连接到模块的设备均正确接地。5.地面测试设备。6.使用防静电现场服务真空。如有必要，清除卡上的灰尘。7.使用接地腕带。将腕带连接至相应的接地插头。安装、拆封和检查 。请勿使用铅笔设置双列直插式开关。为避免开关触点受到污染，从而导致不必要的电路板故障，请勿使用铅笔设置双列直插式开关。
Drive DSI circuit
It is connected by the top 12 pin board edge connector (P1). I/O expansion bus INFI 90 OPEN I/O expansion bus is a high-speed synchronous parallel bus. It provides the communication path between the control module and the I/O module. The control module provides control functions, and the DSI module provides input to the control module. The P2 card edge connectors of the DSI and the control module are connected to the bus. The I/O expander bus is a parallel signal line located on the backplane of the module installation unit (MMU). The 12 bit dual in-line tester placed in the MMU backplane connection socket connects the bus between the control module and the I/O module. The cable assembly can extend the bus to six MMUs. The control module and its I/O module form a separate subsystem in the process control unit (PCU). The I/O expander bus between the control and I/O module subsystems must be separated. Leave the sockets of the dual in-line tester empty or separate them by connecting the MMU without cables. The universal I/O expander bus interface DSI uses a custom gate array to perform I/O expander bus interface functions. All control logic and communication protocols are built into the integrated circuit (IC). The IC provides the following functions: • Address comparison and detection. • Function code locking and decoding. • Read gate pulse generation. • Data line filtering of bus signals. • On board bus driver.
Electrostatic sensitive equipment
When installing and removing the module, use an electrostatic grounding wrist strap. Electrostatic discharges can damage static sensitive devices on modules in the cabinet. When using electrostatic sensitive equipment, use grounding equipment and electrostatic safety regulations. 1. Use electrostatic shielding bag. Place the module in an anti-static bag until you are ready to install it into the system. Keep the bag for future use. 2. Open the front floor bag. Before opening the bag containing the electrostatic sensitive device, contact it with the equipment housing or the ground to equalize the charge. 3. Avoid touching the circuit. Through the edge processing component; Avoid touching the circuit. 4. Avoid partial connection of electrostatic sensitive equipment. Before using the module, make sure that all devices connected to the module are properly grounded. 5. Ground test equipment. 6. Use anti-static on-site service vacuum. If necessary, remove dust from the card. 7. Use a grounding wrist strap. Connect the wrist strap to the appropriate grounding plug. Installation, unpacking and inspection. Do not use a pencil to set the DIP switch. To avoid contamination of the switch contacts, which may lead to unnecessary circuit board failure, do not use a pencil to set a dipswitch.
