MVME340B编码器说明书文档工控系统PLC/DCS模块卡件备件设备

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产品详情

产品标题: MVME340B编码器说明书文档工控系统PLC/DCS模块卡件备件设备

型号：MVME340B

品牌：MOTOROLA

产品图片展示

产品详情资料：

MVME340B

自动引导由ENV命令中包含的参数控制。这些参数允许选择特定的引导设备和文件，并允许对引导延迟进行编程。有关详细信息，请参阅附录A中的ENV命令。ROMboot有两个备用EPROM插槽，XU3和XU4，可用于携带用户编程的EPROM。因此，您无需重新编程187Bug EPROM即可实现ROMboot功能。ROMboot的一个用途可能是在非智能控制器模块上重置SYSFAIL*。MVME340BNORB命令禁用该功能。ROMboot序列1。ROMboot通过以下两种方式之一配置/启用并在通电时执行（也可在复位时执行）：a.通过环境（ENV）命令（参考附录a）b.通过RB命令，假设EPROM（或模块或VMEbus上的其他位置）中有有效代码支持。2。如果安装了ROMboot代码，则由用户编写的例程进行控制（如果例程满足格式要求）。MVME340B

产品英文详情料:

Autoboot is controlled by parameters contained in the ENV command. These parameters allow the selection of specific boot devices and files, and allow programming of the Boot delay. MVME340BRefer to the ENV command in Appendix A for more details. ROMboot There are two spare EPROM sockets, XU3 and XU4, available to carry user-programmed EPROMs. Therefore, you do not have to reprogram the 187Bug EPROMs in order to implement the ROMboot feature. One use of ROMboot might be resetting SYSFAIL* on an unintelligent controller module. The NORB command disables the function. ROMboot Sequence 1. MVME340BROMboot is configured/enabled and executed at powerup (optionally also at reset) in one of two ways: a. By the Environment (ENV) command (refer to Appendix A) b. By the RB command assuming there is valid code in the EPROMs (or optionally elsewhere on the module or VMEbus) to support it. 2. If ROMboot code is installed, a user-written routine is given control (if the routine meets the format requirements).MVME340B