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UDK-04-109自動(dòng)化模塊
格式轉(zhuǎn)換該模塊能夠?qū)?shù)字化數(shù)據(jù)以任何一種原始二進(jìn)制形式呈現(xiàn)給PC（RB）或轉(zhuǎn)換的二進(jìn)制（CB）格式。每種情況下的位模式都不同。這個(gè)格式是開(kāi)關(guān)可選的，每組輸入電路的格式不必相同。
Modicon程序員將以三種不同的方式之一顯示任一類(lèi)型的數(shù)據(jù)：二進(jìn)制、十六進(jìn)制或十進(jìn)制形式。
轉(zhuǎn)換精度該模塊的轉(zhuǎn)換線(xiàn)性為滿(mǎn)量程的0.05%–參考直線(xiàn)穿過(guò)測(cè)量滿(mǎn)標(biāo)度值和測(cè)量零點(diǎn)的線(xiàn)–超過(guò)模塊的工作溫度范圍。
原始二進(jìn)制（RB）格式輸入信號(hào)數(shù)字化后，輸入模塊顯示RB格式的數(shù)據(jù)。在十進(jìn)制表示法中，RB格式的數(shù)據(jù)必須在0至4200范圍。通常，12位設(shè)備的數(shù)據(jù)上限為4095。
該模擬模塊具有允許輸入超過(guò)范圍2%的方法以相同的分辨率（即，原始二進(jìn)制中的計(jì)數(shù)可以達(dá)到4200）。在RB格式中，無(wú)論電壓范圍如何，數(shù)據(jù)范圍都是相同的。
轉(zhuǎn)換二進(jìn)制（CB）格式CB通過(guò)轉(zhuǎn)換RB格式獲得在模塊中。
當(dāng)PC或程序員以十進(jìn)制查看CB數(shù)據(jù)時(shí)模式下，它看起來(lái)像一個(gè)沒(méi)有符號(hào)或小數(shù)點(diǎn)的4位數(shù)字電壓表（DVM）。在CB格式中，上限和下限數(shù)據(jù)取決于電壓范圍。因?yàn)槿鄙俜?hào)，CB格式僅用于單極電壓范圍。
下圖顯示了原始二進(jìn)制輸出的示例。當(dāng)5 V信號(hào)為通過(guò)設(shè)置為0至10V范圍的模塊進(jìn)行數(shù)字化，它生成一個(gè)轉(zhuǎn)換的二進(jìn)制代碼0800十六進(jìn)制或2048十進(jìn)制。診斷通信診斷程序在五秒鐘的初始化期間執(zhí)行隨后通電。診斷例程也在并發(fā)等待狀態(tài)期間運(yùn)行執(zhí)行A/D轉(zhuǎn)換。系統(tǒng)診斷包括：RAM檢查、ROM檢查、UART檢查以及檢查配置開(kāi)關(guān)的合法性設(shè)置和監(jiān)控自動(dòng)校準(zhǔn)的能力。
Diagnostic Communications
Diagnostic procedures are executed during the five second initialization period following power--up. Diagnostic routines are also run during wait states concurrent with executing A/D conversions. System diagnostics are: RAM checks, ROM checks, UART checks, as well as checking the legality of configuration switch settings and monitoring the ability to autocalibrate.
Format Conversion
The module is capable of presenting the digitized data to the PC in either raw binary (RB) or converted binary (CB) format. The bit pattern in each case is different. The format is switch selectable and need not be the same for each group of input circuits. A Modicon programmer will display either type of data in one of three different ways: binary, hexadecimal, or decimal form. Conversion Accuracy Conversion linearity for this module is 0.05% of full scale–referenced to a straight line drawn through the measured full-scale value and the measured zero point–over the module’s operating temperature range. Raw Binary (RB) Format After digitizing the input signal, the input module presents data in RB format. In decimal representation, data in RB format must be within the 0 to 4200 range. Normally, a 12--bit device would have an upper data limit of 4095. This analog module has the means of allowing the input to be up to 2% over-range at the same resolution (i.e., the count in raw binary may go up to 4200). In RB format, the data range is the same regardless of the voltage range. Converted Binary (CB) Format CB is obtained by transforming the RB format within the module. When CB data is viewed by the PC or programmer in decimal mode, it looks like a 4-digit voltmeter (DVM) with no sign or decimal point. In CB format, upper and lower data limits are voltage range dependent. Because of the missing sign, CB format is used only for unipolar voltage ranges. The following figure shows an example of raw binary output. When a 5 V signal is digitized by the module set for 0 to 10 V range, it produces a converted binary code 0800 hex or 2048 decimal.
