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761CNA-AT單站微控制器模塊
7插入/更換模式-ESC Q在插入模式下，當字符顯示在顯示器上的任何位置時，以下所有字符都向右移動一個位置。當前光標位置中的字符也會在輸入字符顯示之前移動。在刪除模式下，顯示的字符只會覆蓋以前存在的任何字符。#的有效值為@-set replace mode A-set insert mode 2.2.28 Auto Wrap mode-ESC R#自動換行模式?jīng)Q定光標移過行尾時發(fā)生的情況。禁用自動換行后，光標將停留在行中的最后一個位置。啟用自動換行時，光標向下移動到下一行的第一個位置。如果光標移過最后一行的末尾，并且啟用了自動換行，則操作取決于自動滾動模式。如果關(guān)閉自動滾動，光標將環(huán)繞到行的第一個位置，但顯示器不會滾動。否則，顯示屏將滾動，光標將返回到最后一行的第一個位置。#的有效值為@-自動換行A-2.2.29自動滾動模式下的自動換行-ESC S#自動滾動模式?jīng)Q定光標移動到最后一行的末尾時會發(fā)生什么。關(guān)閉自動滾動時，光標將停留在最后一個位置。自動滾動打開時，顯示屏滾動（即所有行向上移動，最后一行變?yōu)榭瞻祝鈽艘苿拥阶詈笠恍械牡谝粋€位置。在自動換行關(guān)閉的情況下，當收到回車符時，光標返回到當前行的第一個位置。在自動換行打開的情況下，光標移動到下一行的第一個位置，即它的作用就像同時收到回車和換行。
顯示器關(guān)閉-ESC U
這會關(guān)閉顯示器。顯示器關(guān)閉后，將通過以下兩種事件之一重新打開：?如果操作員按下某個鍵，顯示器將重新打開。但是，該鍵不會傳輸?shù)街鳈C。?如果主機向QTERM-II發(fā)送命令或字符，顯示器將重新打開，命令或字符將正常處理。如果QTERM-II有背光，并且在超時發(fā)生時亮起，則背光將隨顯示器一起關(guān)閉。當顯示器重新打開時，如果發(fā)生超時時背光已打開，則背光將打開。超時時LCD屏幕上顯示的任何內(nèi)容都會丟失；i、 e.當顯示器重新打開時，它將是空白的。自定義字符定義不會丟失。主機可以做的唯一不會打開顯示器的事情是發(fā)出“查詢狀態(tài)”命令（ESC W）。使用此命令的唯一原因是它大大降低了QTERM-II的功耗。查詢狀態(tài)-ESC W查詢狀態(tài)命令（ESC W）返回一個字符，該字符指示兩件事：QTERM-II傳輸緩沖區(qū)中當前的字符數(shù)（0到15），以及顯示是打開還是關(guān)閉。有關(guān)各種條件返回的確切值，請參閱本章末尾的表1-4。這是唯一可以發(fā)送到QTERM-II的命令，如果收到此命令時顯示器關(guān)閉，則不會導致顯示器重新打開。2.2.34查詢光標位置-ESC X將光標位置返回為兩個ASCII字符。這兩個字符的定義方式與設(shè)置光標位置（ESC I）命令相同。詳細清單見表1-4。2.2.35查詢字符-ESC Y返回當前光標位置處字符的字符值。2.2.36向下滾動-ESC Z這會導致顯示器上的前三行向下移動一行。清除頂行，光標保持在顯示器上的相同絕對位置；i、 e.它不會向下滾動文本。2.2.37鍵點擊/重復模式-ESC a#有選擇地啟用和禁用鍵重復和鍵點擊。鍵點擊持續(xù)時間和鍵點擊率在QDATA文件中設(shè)置
7 Insert/Replace Mode - ESC Q
In insert mode, when a character is displayed at any position on the display, all following characters are moved right one position. The character in the current cursor location is also moved before the incoming character is displayed. In delete mode, the character displayed simply over writes whatever character was there previously. Valid values for # are @ - set replace mode A - set insert mode 2.2.28 Auto Wrap Mode - ESC R # The auto wrap mode determines what happens when the cursor moves past the end of a line. With auto wrap off, the cursor stays at the last position in the line. With auto wrap on, the cursor moves down to the first position in the next line. If the cursor moves past the end of the last line, and auto wrap is on, then the action depends on the auto scroll mode. If auto scroll is off, the cursor will wrap to the first position of the line, but the display will not scroll. Otherwise, the display will scroll, and the cursor will return to the first position in the last line. Valid values for # are @ - auto wrap off A - auto wrap on 2.2.29 Auto Scroll Mode - ESC S # Auto scroll mode determines what happens when the cursor moves past the end of the last line. With auto scroll off, the cursor will stay in the last position. With auto scroll on, the display scrolls (i.e., all lines move up, and the last line becomes blank), and the cursor moves to the first position in the last line.With auto line feed off, when a carriage return is received, the cursor returns to the first position in the current line. With auto line feed on, the cursor moves to the first position in the next line, i.e. it acts as if both a carriage return and a linefeed had been received.
Display Off - ESC U
This turns off the display. Once the display has been turned off, it is turned back on by either of two events: ?If the operator presses a key, the display is turned back on. However, the key is not transmitted to the host. ?If the host sends a command or character to the QTERM-II, the display is turned back on, and the command or character will be processed normally. If the QTERM-II has a backlight, and it is on when the timeout occurs, the backlight is turned off along with the display. When the display is turned back on, the backlight is turned on if it was on when the timeout occurred.Anything displayed on the LCD screen when the timeout occurs is lost; i.e. when the display is turned back on it will be blank. Custom character definitions are not lost. The only thing the host can do that will not turn on the display is to issue the Query Status command (ESC W). The only reason to use this command is that it substantially reduces the power consumption of the QTERM-II.Query Status - ESC W The Query Status command (ESC W) returns a character indicating two things: the number of characters presently in the QTERM-II transmit buffer (0 to 15), and whether the display is on or off. Refer to Table 1-4 at the end of this chapter for the exact values returned for various conditions. This is the only command which you can send to the QTERM-II which does not cause the display to be turned back on if the display is off when this command is received. 2.2.34 Query Cursor Position - ESC X Returns the cursor position as two ASCII characters. These two characters are defined in the same way as for the Set Cursor Position (ESC I) command. See Table 1-4 for a detailed listing. 2.2.35 Query Character - ESC Y Returns the character value for the character at the current cursor position. 2.2.36 Scroll Down - ESC Z This causes the top three lines on the display to move down one line. The top line is cleared, and the cursor remains at the same absolute location on the display; i.e. it does not scroll down with the text. 2.2.37 Key Click/Repeat Mode - ESC a # This selectively enables and disables both key repeat and key click. The key click duration and key click rate are set in the QDATA file
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