5SHX1445H0001 3BHL00391P0101 3BHB003230R0101输出控制卡

¥3278.00 1 - 9个
¥3137.00 ≥10个

参数

工控产品产品特性
否是否进口
美国产地

发货地江西瑞昌市 1天内发货供货总量5173个

瑞昌明盛自动化设备有限公司 4年: 进入店铺在线咨询

5SHX2645L0004 3BHB003154R0101 5SXE03-0141伺服电机用户手册 ¥3137.00

5SHX2645L0004 3BHB003154R0101 5SXE03-0141驱动控制器配置教程 ¥3137.00

5SHY3545L0009 3BHE009681R0101 GVC750BE101电源说明书在线阅读 ¥3137.00

5SHY3545L0020 3BHE014105R0001 5SXE08-0166控制卡中文PDF ¥3137.00

5SHY4045L0006 3BHB030310R0001 3BHE039203R0101控制器中文 ¥3137.00

7EX470.50-1通讯控制器输入模块配置教程 ¥3137.00

产品详情

产品标题：5SHX1445H0001 3BHL00391P0101 3BHB003230R0101输出控制卡

型号：5SHX1445H0001 3BHL00391P0101 3BHB003230R0101

质保：七天验收期，质保期一年

品牌：ABB

产品图片展示

产品详情资料：

IBM PC/AT计算机通过将***个从机8259A PIC级联到原始主机8259A-PIC中，又增加了八条IRQx线路，编号为IRQ8到IRQ15。主PIC处的中断线IRQ2被提交为从PIC的级联输入。该主/从体系结构，即标准PC/AT中断映射，如图中PCI到ISA桥PIIX4E 82371EB部分***21页图E-2所示。为了保持与PC/XT系统的向后兼容性，IBM选择在从属PIC上使用新的IRQ9输入，以作为PC/WT扩展总线上的旧IRQ2中断线运行。因此，在AT系统中，IRQ9中断线连接到AT扩展总线（或ISA总线）上的旧IRQ2引脚。BIOS定义每个设备要使用的PC/AT中断线。BIOS向两个级联的8259A PIC芯片中的每个芯片写入一个8位矢量，该矢量将每个IRQx映射到内存中相应的中断矢量。

产品英文详情资料：

The IBM PC/AT computer added eight more IRQx lines, numbered IRQ8 to IRQ15, by cascading a second slave 8259A PIC into the original master 8259A PIC. The interrupt line IRQ2 at the master PIC was committed as the cascade input from the slave PIC. This master/slave architecture, the standard PC/AT interrupt mapping, is illustrated in Figure E-2 on page 121 within the PCI-to-ISA Bridge PIIX4E 82371EB section of the diagram. To maintain backward compatibility with PC/XT systems, IBM chose to use the new IRQ9 input on the slave PIC to operate as the old IRQ2 interrupt line on the PC/XT Expansion Bus. Thus, in AT systems, the IRQ9 interrupt line connects to the old IRQ2 pin on the AT Expansion Bus (or ISA bus). The BIOS defines the PC/AT interrupt line to be used by each device. The BIOS writes to each of the two cascaded 8259A PIC chips an 8-bit vector, which maps each IRQx to its corresponding interrupt vector in memory.