NI PXIE-1082一个完整的机械保护监控器
OM保护
OEM保护与密码和权力级别相似。然而,OEM保护提供了更高的安全级别。用1~7位字符作为密码确定使用/不使用OEM保护特征。OEM保护特征使能时,禁止对CPU程序进行任何读写操作。提供了OEM密匙作为特别的密码来保护OEM商的软件投资。OEM密匙非空时,CPU可能处于禁止任何读写的状态。这允许OEM商为CPU编制控制程序,并且设定OEM锁定模式,以防止最终用户读取或修改程序。
注意:护不 允许进行闪存固件更新。想要进行固件更新,先要取消OEM保护,在完成固件更新后,再重新设定OEM保护。
PAC系统的I/O系统
PAC系统的/O系统为CPU和其他设备提供了接口。PAC系统的I/0系统支持:
■I/O和智能模块
■Ethemet Interface以太网接口
■Motion 模块(RX3i)
Genius I/0系统(RX7i)。Genius /O总线控制器(GBC)为RX7i CPU和GeniusI/O总线提供接口。
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