LC/Modbus Operation and Diagnostics
11/98 4-5 U3-1050
Westinghouse Proprietary Class 2C
4-3.3. Sample Debugging Session
The normal operating condition where no diagnostics are displayed has the
following parameter settings. A typical debugging session would start with these
settings:
• DisplayModeFlag = nodisplay
• DisplayRegs = false
• AnalyzeMsgs = false
The following debugging actions could be taken:
1. Press “t” to enable the display of registers. The Page Up and Page Down keys
are used to page through the registers. The keys “h”, “d”, and “f” can be used to
change the way registers are displayed to hexadecimal, decimal, and floating
point respectively.
2. Choose to change the value of a register by pressing the “m” key. You will then
be prompted to enter a register number and value. You might choose to look at
a register specified by a pseudo-point name (as described in Section 3) by
pressing the “x” key. You will then be prompted to enter a pseudo- point number
and the value will be displayed.
3. After using the register display to investigate a problem, in order to see the
outgoing Modbus message and the subsequent response, press the “t” key to
disable the register display and the “a” key to enable analyze mode. The
messages are displayed on the external host PC screen.


LC/Modbus操作和诊断
1998年11月4-5日U3-1050
西屋专有2C级
4-3.3. 调试会话示例
未显示诊断信息的正常工作条件具有
以下是参数设置。典型的调试会话将从以下内容开始
设置：
•DisplayModeFlag=节点显示
•DisplayRegs=false
•AnalyzeMsgs=错误
可以采取以下调试操作：
1.按“t”键可显示寄存器。上下翻页键
用来翻阅寄存器。键“h”、“d”和“f”可用于
将寄存器的显示方式更改为十六进制、十进制和浮点
分别点。
2.按“m”键选择更改寄存器的值。那你会的
系统会提示您输入寄存器编号和值。你可以选择看
由伪点名称（如第3节所述）指定的寄存器
按“x”键。然后，系统会提示您输入伪点数
将显示该值。
3.使用寄存器显示屏调查问题后，为了查看
传出Modbus消息和后续响应时，按“t”键
禁用寄存器显示和“a”键以启用分析模式。这个
消息显示在外部主机PC屏幕上。