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ved after this time limit, the tribunal will not usually accept i. If you are worried about how the time limits apply to you, take advice from one of the anisations listed under Further help. Employment tribunals are less formal than some other courts, but it is still a legal process and you will need to give evidence under an oath or affirmation. Most people find making a claim to an employment tribunal challenging. If you are thinking about making a claim to an employment tribunal, you should get help straight away from one of the anisations listed under Further help. If you are being represented by a solicitor at the tribunal, they may ask you to sign an agreement where you pay their fee out of your pensation if you win the case. This is known as a damagesbased agreement. In England and Wales, your solicitor can39。 19 g an employment tribunal clai Employment tribunals sort out disagreements between employers and employees. You may need to make a claim to an employment tribunal if: ? you don39。其中的溫控系統(tǒng)采用鎳鉻 /鎳鋁熱電偶,此電偶用于 0℃~ 1000℃的溫度測(cè)量范圍,相應(yīng)的輸出電壓為 ,在本系統(tǒng)中,若采用模糊控制或者神經(jīng)網(wǎng)絡(luò)及遺傳算法控制,這些控制技術(shù)會(huì)大大提高控制精度,不但使控制簡(jiǎn)捷,降低了產(chǎn)品的成本 ,提高了生產(chǎn)效率。 12 T0中斷服務(wù)程序框圖如圖 圖 T0 中斷服務(wù)程序流程圖 13 T0 中斷服務(wù)程序: ORG 000BH AJMP CT0 CT0: PUSH ACC ; PUSH DPL ; 保護(hù)現(xiàn)場(chǎng) PUSH DPH ; SETB D5H ; 置標(biāo)志 ACALL SAMP ACALL FILTER CJNE A, 42H, TPL WL: MOV C, 5EH MOV 5FH, C CLR 5EH ACALL UPL POP DPH POP DPL POP ACC RETI ;中斷返回 TPL: JNC TPL1 CLR 5FH ;清 上次越限標(biāo)志 CJNE A, 43H, MTPL HAT: SETB ;若溫度不越限,則綠燈亮 ACALL PID 14 MOV A, 2FH CPL A ; INC A ; 對(duì) PID 值求補(bǔ),作為 TL1值 NM: SETB MOV TL1, A MOV TH1,0FFH SETB PT1 SETB TR1 ;啟動(dòng) T1 SETB ET1 ;允許 T1 中斷 ACALL TRAST LOOP: ACALL DISPLY ;顯示溫度 JB D5H,LOOP ;等待 T1中斷 POP DPH POP DPL POP ACC RETI MTPL: JNC HAT SETB ;否則,下限聲 光報(bào)警 MOV A,45H CPL A INC A AJMP NM TPL1: SETB 5EH JNB 5FH,WL INC 44H ;越限計(jì)數(shù)器加 1 MOV A,44H CLR C SUBB A,N ;越限 N 次嗎? JNZ WL SETB CLR 5EH CLR 5FH POP DPH 15 POP DPL POP ACC RETI 采樣子程序 采樣子程序 SAMP:流程圖如下圖所示 , 圖 采樣子程序流程圖 采樣子程序: SAMP: MOV R0,2CH ;采樣值始址送 R0 MOV R2,03H MOV DPTR,03F8H SAM1: MOVX DPTR,A ;啟動(dòng) ADC0809 工作 MOV R3,20H DLY: DJNZ R3,DLY ;延時(shí) N Y 選同 IN0 啟動(dòng) ADC 延時(shí) A/D完成? 所有采樣結(jié)束? 返 回 N 采樣值始址送 R0 采樣次數(shù)送 R2 16 HERE: JB ,HERE MOVX A,DPTR MOV R0,A ;存放采樣值 INC R0 DJNC R2,SAM1 RET 數(shù)字濾波程序 數(shù)字濾波程序 FILTER:用于濾去來自 控制現(xiàn)場(chǎng)對(duì)采樣值的干擾。 T0 中斷服務(wù)程序 T0中斷服務(wù)程序是溫度控制系統(tǒng)的主程序,用于啟動(dòng) A/D 轉(zhuǎn)換器,讀如數(shù)據(jù)采樣,數(shù)字濾波,越權(quán)溫度報(bào)警和處理, PID 計(jì)算和輸出可控硅的同步觸發(fā)脈沖等。 清本次越限標(biāo)志 CLR 5FH ; 清上次越限標(biāo)志 CLR A ; 清累加器 A MOV 2FH, A MOV 30H, A MOV 3BH, A MOV 3CH, A 清暫存單元 MOV 3DH, A MOV 3EH, A MOV 44H, A MOV DISM0, A MOV DISM1, A MOV DISM2, A MOV DISM3, A 清顯示緩沖區(qū) 11 MOV DISM4, A MOV DISM5, A MOV TMOD, 56H MOV TL0,