IS200HSLAH2ADE燃机模块,GE使用方法教程
正确接地另一个需要考虑的问题是接地引脚的使用。有两个标有GND的引脚。针脚7是信号接地,必须连接到远程设备以完成电路。针脚1是底盘接地,但必须小心使用。机箱是通过中的绿色导线连接到电源接地电源线和必须连接到机箱才能进入符合电气规范。问题是,当装置连接到不同的电气设备时插座,接地电位可能有几伏的差异。
IS200HSLAH2ADE燃机模块如果每个设备的针脚1通过电缆相互连接,可能会产生几安培的电流。这种情况可能不会仅对典型电缆中的小导线有危险,但可能还会产生电噪声,导致数据传输错误。这就是为什么图A-1显示引脚1没有连接。正常地针脚7应仅在一个位置连接到机箱接地指向如果一台计算机使用多个终端,则逻辑这一点的位置是在计算机上。端子不应在逻辑接地回路和机箱之间建立连接。基于M68000的(68K)系列主板和系统级产品有一个共同的谱系,源自调试器固件当前用于所有基于摩托罗拉M68000的系统CPU模块177Bug包是一个强大的评估和调试工具对于围绕基于MVME177的CISC构建的系统微型计算机。设施可用于装载和执行在系统的完全操作员控制下的用户程序当使用177Bug时,您可以使用调试器进行操作目录或诊断目录。如果您在调试器中目录中,调试器提示“177 Bug>”显示,您已经您可以使用的所有调试器命令。如果你在诊断目录,显示诊断提示“177 Diag>”您可以使用所有的诊断命令以及所有调试器命令。您可以在使用Switch directories(SD)命令创建目录,或者可以检查您所在的特定目录中的命令当前通过使用Help(HE)命令进入。由于177Bug是命令驱动的,因此它执行各种响应用户在键盘上输入的命令的操作。当您输入命令时,177Bug执行该命令并提示再次出现。但是,如果您输入一个命令导致执行用户目标代码(例如“GO”),然后控制可能或者可能不会返回177Bug,这取决于用户的结果程序如果您使用了摩托罗拉的一个或多个其他调试包,您会发现CISC 177Bug非常相似。相当大的还努力使交互式命令更加一致的例如,命令和之间的分隔符参数现在可以互换为逗号或空格。
Proper Grounding
Another subject to consider is the use of ground pins. There are two
pins labeled GND. Pin 7 is the SIGNAL GROUND and must be
connected to the distant device to complete the circuit. Pin 1 is the
CHASSIS GROUND, but it must be used with care. The chassis is
connected to the power ground through the green wire in the
power cord and must be connected to the chassis to be in
compliance with the electrical code.
The problem is that when units are connected to different electrical
outlets, there may be several volts of difference in ground potential.
If pin 1 of each device is interconnected with the others via cable,
several amperes of current could result. This condition may not
only be dangerous for the small wires in a typical cable, but may
also produce electrical noise that causes errors in data transmission.
That is why Figure A-1 shows no connection for pin 1. Normally,
pin 7 should only be connected to the CHASSIS GROUND at one
point; if several terminals are used with one computer, the logical
place for that point is at the computer. The terminals should not
have a connection between the logic ground return and the chassis.The firmware for the M68000-based (68K) series of board and
system level products has a common genealogy, deriving from the
debugger firmware currently used on all Motorola M68000-based
CPU modulesThe 177Bug package is a powerful evaluation and debugging tool
for systems built around the MVME177 CISC-based
microcomputers. Facilities are available for loading and executing
user programs under complete operator control for system When using 177Bug, you operate out of either the debugger
directory or the diagnostic directory. If you are in the debugger
directory, the debugger prompt “177-Bug>” displays and you have
all of the debugger commands at your disposal. If you are in the
diagnostic directory, the diagnostic prompt “177-Diag>” displays
and you have all of the diagnostic commands at your disposal as
well as all of the debugger commands. You may switch between
directories by using the Switch Directories (SD) command, or may
examine the commands in the particular directory that you are
currently in by using the Help (HE) command.
Because 177Bug is command-driven, it performs its various
operations in response to user commands entered at the keyboard.
When you enter a command, 177Bug executes the command and
the prompt reappears. However, if you enter a command that
causes execution of user target code (e.g., “GO”), then control may
or may not return to 177Bug, depending on the outcome of the user
program.
If you have used one or more of Motorola's other debugging
packages, you will find the CISC 177Bug very similar. Considerable
effort has also been made to make the interactive commands more
consistent. For example, delimiters between commands and
arguments may now be commas or spaces interchangeably.