产品详细资料
模式定义VMIVME-7740使用82C54定时器/计数器作为定时器。82C54定时器/计数器可编程为在六种不同模式下工作(编号为模式0至模式5)。VMIVME-7740定时器是配置为使用模式2运行的硬件。仅定义了模式2。模式2用作除以N计数器。一旦控制字和初始计数被写入计时器,初始计数将被加载到下一个时钟周期。当计数减至1时,产生中断。然后计时器重新加载初始计数,并重复该过程。此模式是周期性的。对于初始计数N,序列每N个CLK循环重复一次。初始计数为1是非法的。在计时器计时时写入新计数不会影响当前序列。新的计数将在当前序列结束时加载。VMIVME-7740具有可选的板载闪存大容量存储系统,允许主机发出命令以读取或写入闪存阵列中的内存块。该闪存磁盘在用户看来是一个智能ATA(IDE)磁盘驱动器,具有与“旋转介质”IDE硬盘驱动器相同的功能和功能。
Mode Definitions The VMIVME-7740 utilizes an 82C54 Timer/Counter for its Timers. 82C54 Timer/Counters can be programmed to function in six different modes (numbered Mode 0 through Mode 5). The VMIVME-7740 Timers are hardware configured to operate using Mode 2. Only Mode 2 is defined. Mode 2 functions as a divide by N counter. Once a Control Word and an initial count are written to the Timer, the initial count is loaded on the next Clock cycle. When the count decrements to 1 an interrupt is generated. The Timer then reloads the initial count and the process repeats. This Mode is periodic. For an initial count of N, the sequence repeats every N CLK cycles. An initial count of 1 is illegal. Writing a new count while the Timer is counting does not affect the current sequence. The new count will be loaded at the end of current sequence The VMIVME-7740 features an optional on-board Flash mass storage system that allows the host computer to issue commands to read or write blocks to memory in a Flash memory array. This Flash Disk appears to the user as an intelligent ATA (IDE) disk drive with the same functionality and capabilities as a “rotating media” IDE hard drive.
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●使用前:
在操作和维护,安装设备之前,请阅读并严格遵守安全相关的信息。
Read and strictly follow safety-related information before operatingmaintainingand installing equipment.
●使用者要求:
必须从事安装,组装或维护设备等相关工控电气机械以及其他相关技术的人员。
Must be engaged in the installation,assembly or maintenance of equipment and other related industriacontroeectrica machinery and other related technica personne.应用范围:
应用于品牌本系列工业以及生产生活自动化设备产品。
Used in the brand of this series of industriaand production automation eauipment products
适用于场景:系统集成,非标定制,产线升级改造,原设备电气替换等等。
Suitable for scenarios:system integration,non-standard customizationproduction line upgrading and transformation,electrical replacement of original equipment,etc.
●操作人员:
应该由本品牌专业培训操作员来安装、操作和维修设备。专业人员具有技术能力强,熟悉安全信息和安全实施:
熟悉设备的安装加工、操作和维护:熟悉处理所有的潜在危险情况。
Equipment should be installed,operated and maintained by trained operators from the brand
●危险情况
警告
.请注意使用人员的人身安全。
●除了产品特性以及功能,还需了解产品的使用寿命环境。
●充分学习产品使用手册,否则非专业人员可能会造成人身危险。
Study the product instruction manual thoroughlyotherwise it may cause personal danger to non-professionals.
●服务行业
适用水泥,木业,石业,橡胶,石油,化工,发电,环保,水处理,制冷,交通,钢铁,食品,饮料,船舶,制冷等行业
Applicable to cementwood,stone,rubber,petroleumchemical, power generation