產(chǎn)品內(nèi)容介紹
Bosch 1070071219-102控制卡
設(shè)置超時(shí)延遲-ESC F這將設(shè)置一個(gè)時(shí)間，在該時(shí)間之后，如果沒(méi)有發(fā)生任何活動(dòng)，QTERM-II將自動(dòng)關(guān)閉顯示器（以節(jié)省電源）。顯示器關(guān)閉后，將通過(guò)以下兩種事件之一重新打開(kāi)：?如果操作員按下某個(gè)鍵，顯示器將重新打開(kāi)。但是，該鍵不會(huì)傳輸?shù)街鳈C(jī)。?如果主機(jī)向QTERM-II發(fā)送命令或字符，顯示器將重新打開(kāi)，命令或字符將正常處理。如果QTERM-II有背光，并且在超時(shí)發(fā)生時(shí)亮起，則背光將隨顯示器一起關(guān)閉。當(dāng)顯示器重新打開(kāi)時(shí)，如果發(fā)生超時(shí)時(shí)背光已打開(kāi)，則背光將打開(kāi)。當(dāng)超時(shí)發(fā)生時(shí)，即當(dāng)顯示器重新打開(kāi)時(shí)，LCD屏幕上顯示的任何內(nèi)容都將丟失。自定義字符定義不會(huì)丟失。此命令的格式為ESC F#，其中#是40h到7Fh（“@”到DEL）范圍內(nèi)的字符。40h禁用超時(shí)功能。其他值以20秒為增量設(shè)置超時(shí)延遲，從20秒到21分鐘。有關(guān)代碼和超時(shí)延遲的完整列表，請(qǐng)參見(jiàn)表1-4（本章末尾）。主機(jī)可以做的唯一不會(huì)打開(kāi)顯示器的事情是發(fā)出“查詢狀態(tài)”命令（ESC W）。2.2.17設(shè)置選項(xiàng)卡間距-ESC G#設(shè)置水平選項(xiàng)卡列的寬度。該命令的格式為ESC G#，其中#是40h到53h（“@”到“S”）范圍內(nèi)的字符。40h導(dǎo)致忽略制表符；41h在每列設(shè)置制表符（這會(huì)導(dǎo)致制表符被視為空格），42h在每第二列設(shè)置制制表符，等等。如果#超出此范圍，則忽略命令序列
擦除至屏幕末尾-ESC J
從當(dāng)前光標(biāo)位置到屏幕末尾擦除。光標(biāo)位置不變。2.2.21刪除到行尾-ESC K刪除從當(dāng)前光標(biāo)位置到行尾的所有顯示字符。光標(biāo)位置不變。2.2.22設(shè)置對(duì)比度-ESC L#此命令設(shè)置顯示對(duì)比度。它的形式為ESC L#，其中#的范圍為40h到7Fh（“@”到DEL）。字符的ASCII值越小，對(duì)比度越低。字符的ASCII值越高，對(duì)比度越高。2.2.23重置QTERM-II-ESC M將QTERM-II重置為通電狀態(tài)。這包括清除所有輸入和輸出緩沖區(qū)和顯示器，并將所有參數(shù)重置為QDATA文件設(shè)置的配置，或隨后的將參數(shù)保存到EEPROM命令。2.2.24查詢版本-ESC N這告訴QTERM-II將其軟件版本傳輸?shù)街鳈C(jī)。版本將由四個(gè)ASCII字符組成，格式為vx。y、 其中x和y是單個(gè)ASCII數(shù)字固定持續(xù)時(shí)間的嘟嘟聲命令（ESC O B）與發(fā)送貝爾命令（07h，^G）相同。蜂鳴器的持續(xù)時(shí)間由設(shè)置蜂鳴器持續(xù)時(shí)間命令（ESC e）和QDATA文件設(shè)置（默認(rèn)值為1/2秒）。2.2.26 LED開(kāi)/關(guān)/閃爍/切換-ESC P#控制QTERM-II鍵盤(pán)上的LED，包括換檔鍵LED。這些LED中的任何一個(gè)都可以設(shè)置為打開(kāi)、關(guān)閉或閃爍（閃爍速率在QDATA文件中通過(guò)設(shè)置LED閃爍速率命令進(jìn)行設(shè)置）。如果使用換檔鍵，按下?lián)Q檔鍵將使換檔LED的正確狀態(tài)覆蓋此命令設(shè)置的任何狀態(tài)。如果未使用換檔鍵，換檔LED僅由該命令控制。#的有效值列表以及每個(gè)此類值的影響見(jiàn)表1-4。作為此命令的示例，字符串
Set Timeout Delay - ESC F
This sets the time after which, if no activity has occurred, the QTERM-II will automatically turn off the display (in order to save power). 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, will be blank. Custom character definitions are not lost. The format for this command is ESC F #, where # is a character in the range of 40h to 7Fh ('@' to DEL). 40h disables the timeout function. Other values set the timeout delay in 20 second increments, from 20 seconds through 21 minutes. See Table 1-4 (at the end of this chapter) for a complete list of codes and timeout delays. The only thing the host can do that will not turn on the display is to issue the Query Status command (ESC W). 2.2.17 Set Tab Spacing - ESC G # This sets the width of the horizontal tab columns. The command has the form ESC G #, where # is a character in the range of 40h to 53h ('@' to 'S'). 40h causes tab characters to be ignored; 41h sets tabs at every column (which causes tabs to be treated as spaces), 42h sets tabs to every second column, etc. If # is outside this range, the command sequence is ignored
Erase to End of Screen - ESC J
Erases from the current cursor position to the end of the screen. The cursor position is unchanged. 2.2.21 Erase to End of Line - ESC K Erases all displayed characters from the current cursor position to the end of the line. The cursor position is unchanged. 2.2.22 Set Contrast - ESC L # This command sets the display contrast. It has the form ESC L #, where # is in the range of 40h to 7Fh ('@' to DEL). The smaller the ASCII value of the character, the lower the contrast. The higher the ASCII value of the character, the higher the contrast. 2.2.23 Reset QTERM-II - ESC M Resets the QTERM-II to its power-up state. This includes clearing all input and output buffers and the display, and resetting all parameters to the configuration set by the QDATA file, or a subsequent Save Parameters to EEPROM command. 2.2.24 Query Version - ESC N This tells the QTERM-II to transmit its software version to the host. The version will consist of four ASCII characters in the format vx.y, where x and y are single ASCII digits The fixed duration beep command (ESC O B) is identical to sending a Bell command (07h, ^G). The duration used for beeping is set by the Set Buzzer Duration command (ESC e) and by the QDATA file (default is 1/2 second). 2.2.26 LEDs On/Off/Blink/Toggle - ESC P # This controls the LEDs on the QTERM-II keypad, including the shift key LED. Any of these LEDs can be set to on, off or blink (the blink rate is set in the QDATA file and by the Set LED Blink Rate command). If a shift key is used, pressing the shift key will cause the proper state of the shift LED to override whatever state is set by this command. If no shift key is used, the shift LED is controlled solely by this command. See Table 1-4 for a list of valid values for # and the effect of each such value. As an example of this command, the string
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