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REXRTOH R911281045工控自動化控制器

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REXRTOH R911281045工控自動化控制器

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型號:R911281045
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REXRTOH  R911281045工控自動化控制器 REXRTOH  R911281045工控自動化控制器
瑞昌明盛進(jìn)出口貿(mào)易有限公司
主營DCS控制系統(tǒng)備件,PLC系統(tǒng)備件及機(jī)器人系統(tǒng)備件,
優(yōu)勢品牌:Allen Bradley、BentlyNevada、ABB、Emerson Ovation、Honeywell DCS、Rockwell ICS Triplex、FOXBORO、Schneider PLC、GE Fanuc、Motorola、HIMA、TRICONEX、Prosoft等各種進(jìn)口工業(yè)零部件
REXRTOH  R911281045工控自動化控制器 REXRTOH  R911281045工控自動化控制器 REXRTOH  R911281045工控自動化控制器

REXRTOH  R911281045工控自動化控制器
外中斷1服務(wù)程序
外中斷1由時鐘信號線的下降沿觸發(fā),在其中斷服務(wù)程序中,如果查詢到已建立允許接收標(biāo)志,則接收16位顯示數(shù)據(jù)的BCD碼和2位小數(shù)點(diǎn)位置信息,并將其轉(zhuǎn)換為18位并行數(shù)據(jù),存于DispData變量中供T0中斷服務(wù)程序進(jìn)行顯示。由于顯示數(shù)據(jù)和小數(shù)點(diǎn)位置信息都是低位在前,高位在后,所以在程序中使用右移操作實(shí)現(xiàn)串行數(shù)據(jù)到并行數(shù)據(jù)的轉(zhuǎn)換。小數(shù)點(diǎn)位置信息為0~3時,表示小數(shù)點(diǎn)分別位于數(shù)碼管的千位、百位、十位和個位之后。如果小數(shù)點(diǎn)在個位之后,則不顯示小數(shù)點(diǎn)。當(dāng)接收到18位信息后,則關(guān)閉外中斷1,重新開放外中斷0進(jìn)行下一周期的數(shù)據(jù)傳輸。外中斷1服務(wù)程序的主要代碼如下:
void Int1_Srvice(void) interrupt 2
{ if(RecEnable==1) //允許接收
{ p32=1; //檢測數(shù)據(jù)線電平
if(p32==1) RecData=RecData|0x40000;
RecData=RecData>>1; //實(shí)現(xiàn)串/并轉(zhuǎn)換
DataClock++;
if(DataClock==19) //已接收到18位數(shù)據(jù)
{ //顯示數(shù)據(jù)存于DispData中
DispData=RecData;RecData=0;
SysClock=0;DataClock=0;
RecDone=1;RecEnable=0;
EX0=1; //開外中斷0
EX1=0; //關(guān)外中斷1
}}}
4 應(yīng)用實(shí)例
利用PLC系統(tǒng)的(n+1)個輸出點(diǎn)可以連接n臺數(shù)顯儀表,其中1點(diǎn)用作公共時鐘線,n點(diǎn)用作n臺數(shù)顯儀表的數(shù)據(jù)線。使用數(shù)顯儀表顯示PLC系統(tǒng)的數(shù)據(jù)或參數(shù)時,還必須給PLC系統(tǒng)編寫滿足時序要求的驅(qū)動程序。
4.1 PLC驅(qū)動程序設(shè)計(jì)
此處以三菱FX2N PLC系統(tǒng)為例,介紹PLC系統(tǒng)驅(qū)動程序的編寫方法。假設(shè)使用Y0作為數(shù)據(jù)線,Y1作為時鐘線,則PLC驅(qū)動程序的梯形圖如圖5所示。程序中使用D0單元存放顯示數(shù)據(jù),其取值范圍為0~9999 pH meter and carbon dioxide analyzer are easy to condense water droplets at the detection part, so the maintenance frequency should be relatively increased. Generally, it needs to be maintained once in about 4 days, so as to achieve real-time parameter detection in a timely and accurate manner.

3.2.3 data networking

As the technology center is far away from the greenhouse site, and technicians need to monitor production parameters in real time and modify the best production parameters, data networking is necessary. Kunlun configuration can realize data networking in two ways: one is web function; The second is the remote database function. The web function can only browse remotely without permission to modify parameters, so it is not applicable to this system. Defining the remote database well realizes the data networking.

3.3 software implementation descriptionAfter the completion of configuration and design, after simulation and on-line test, it is proved that the functions realized by the system fully meet the original design intention and meet the needs of production.