【正文】 aracter with the exception of field Start/End, if not ASCII set as wrong LRC)A 2 A2 (set pointer to the last received alarm)A 3 A3 (pointer on the previous alarm of the buffer)A 4 A4 (delete alarms buffer)Chapter 9 PROTOCOL OF INTERNAL RS 485. Power plant UPS Communication systemPage 43(03/00) 讀取事件歷史記錄PC | SOH | 98H | 0DH | STX | Address UPS | “cmd1” | “cmd2” | “password” | ETX | Checksum |NODE | SOH | A0H | var. | STX | Address | Mode | Group | “cmd1” | “cmd2” | “data” | ETX| Checksum |其中：password 8 個數(shù)字cmd1, cmd2 dataP A First subblock of the pointed alarms clusteridentical to the mand format A1 of the “Alarm History”note: cmd2 = B,.C, D, E, F, G, H, I, J, K access to next subblock after pointed clusterP 2 P2 (set pointer to the last alarm cluster receivedP 3 P3 (pointer to the previuous alarm cluster of the buffer)P 4 P4 (delete alarms buffer) 讀取 MODEM 歷史記錄（目前無用）PC | SOH | 98H | 0DH | STX | Address UPS | “cmd1” | “cmd2” | ”password” | ETX | Checksum |NODE | SOH | A0H | var. | STX | Address | Mode | Group| “cmd1” | “cmd2” | ”data” | ETX | Checksum |其中：password 8 個數(shù)字 (不受 UPS 控制)cmd1, cmd2 dataM A first subblock of the pointed alarms clusteridentical to mand format A1 of Alarm Historynote: cmd2 = B,.C, D, E, F, G, H, I, J, K access to subblocks after the pointed clusterM 4 (delete alarm buffer mand of session ending) 獲取節(jié)點(diǎn)狀態(tài)（目前無用）PC | SOH | 99H | 05H | STX | “000” | ETX | Checksum |NODE | SOH | A0H | 24H | STX | Address | Mode | Group | “00” | call type | node id. | node status | ETX | |Checksum |where:call type 0 = no call (example local PC)1 = call from remote PC2 = call from Alarm3 = timed call from NODEnode identifier 20 characters of telephone number(blank by no digits)node status 8 characters UPS1 .... UPS8 with 0 = normal operation1 = on alarm2 = not connectedPower plant UPS Chapter 9 PROTOCOL OF INTERNAL RS 485.Communication systemPage 44 (03/00) 獲取 MODEM 頁面參數(shù)（目前無用）PC | SOH | 9AH | 05H | STX | Address | “L” | ETX | Checksum |NODE | SOH | A0H | D5H | STX | Address | Node | Group | “L” | parameters | ETX | Checksum |其中：parameters:MODEM code 20 charactersInitialization string 80 charactersNode first phone number 20 charactersNode sec. phone number 20 charactersRem. first phone number 20 charactersRem. sec. phone number 20 charactersDial type 1 character 0 = DEC / 1 = MFCall on alarm 1 character 0 = NO / 1 = YESDate of programmed calls 8 characters Time of programmed calls 8 characters Timeout days for programmed calls 2 characters ddTimeout hours for programmed calls 2 characters hhNumber of programmed calls 4 characters (0000:9999)(0000 = no calls / 9999 = always) 設(shè)置 MODEM 參數(shù)（目前無用）PC | SOH | 9AH | 60H | STX | Address UPS| “S (blank)”| “password“ | “code data” | “data” | ETX || Checksum |NODE | SOH | A0H | 07H | STX | Address | Mode | Group | “S (blank)” | ETX | Checksum |其中password 8 characterscodedata 3 characters (000:999)data: 80 characters with right alignment(ex. 0....00000035) and the following field code:01 MODEM code02 Initialization string03 Node first phone number04 Node sec. phone number05 Rem. first phone number06 Rem sec. phone number07 Dial type08 Call on alarm09 Date of programmed calls10 Time of programmed calls11 Timeout days for programmed calls12 Timeout hours for programmed calls13 Number of programmed callsChapter 9 PROTOCOL OF INTERNAL RS 485. Power plant UPS Communication systemPage 45(03/00) 獲取告警蜂鳴器和 LED 設(shè)置狀態(tài)PC | SOH | 9BH | 05H | STX | Address | 39。NACK 數(shù)據(jù)幀的“NACK CODE”由兩個 ASCII 碼組成，如下所示：01 來自 UPS 主機(jī)的信息超時02 沒有收到 STX/緩沖區(qū)內(nèi)的數(shù)據(jù)沒有發(fā)給 UPS 主機(jī)03 不是 ASCII 碼文本04 校驗(yàn)和錯誤05 UPS 未就緒06 數(shù)據(jù)錯誤07 命令錯誤08 一級密碼錯誤09 數(shù)據(jù)包中數(shù)據(jù)長度過長（超出緩沖區(qū)范圍）10 UPS 內(nèi)部的 CAN BUS 沒有正常運(yùn)行11 參數(shù)頁面錯誤12 設(shè)置參數(shù)溢出正常范圍13 數(shù)據(jù)包實(shí)際長度與數(shù)據(jù)包中長度信息不一致14 從 UPS 從機(jī)接收到錯誤的數(shù)據(jù)幀15 UPS 主從機(jī)之間通信超時16 二級密碼錯誤PC 從節(jié)點(diǎn)收到 SOH 后設(shè)置一個最長可以為 2 秒鐘的超時等待時間。 Date to Next Servicing 247。 99 05Alarm threshold voltage (V) 247。 9 2Slewrate (Hz/s) Number of celles 150 247。這根長 15 米的線纜是通信組件中的其中之一。2. 系統(tǒng)配置 節(jié)點(diǎn)概念節(jié)點(diǎn)是指能和 PC 機(jī)（本地/遠(yuǎn)程）進(jìn)行通信的每一個功率模塊。 硬件一個使用 LOCAL 配置連接的系統(tǒng)由以下元素組成：? 一臺有 485 處理器或更好的處理器的 PC 和被設(shè)置為主機(jī)的功率模塊進(jìn)行本地連接；? 軟件的安裝盤；? 連接 PC 和功率模塊的線纜，如圖 所示；? 內(nèi)部連接使用的 RS485 線纜（用于 2 個或多個功率模塊之間連接）。 99 10Lower limit VOUT (%) 00 247。 only for UPS Automatic boost charge NOYESNO of boost charge (min.) 0000 247。 99999999 00000000Time of Last Servicing 247。從 SOH 開始到 ETX 為止，把所有數(shù)據(jù)以字節(jié)（8bits）為單位進(jìn)行逐一累加，取和的最后一個字節(jié)作為校驗(yàn)和。C Data not available (***.* transmitted).Temperature T3 T air in 176。S (blank)| “password“ | “code data” | “data” | ETX | Checksum |NODE | SOH | A0H | 07H | STX | Address | Mode | Group | 39。 | Led1 .. Led23| ETX | Checksum |where:parameters:Led = 23 ascii characters representing status of 23 leds present into UPS Front Panel0 = Led OFF1 = Led ON2 = Led Flashing5. 內(nèi)部的 RS485 總線這是在系統(tǒng)內(nèi)部用于 UPS 之間通信的數(shù)據(jù)總線，它使得 PC 可以直接地訪問所有 UPS（不管是本地還是遠(yuǎn)程的）。L39。Chapter 8 PROTOCOL ON SERIAL INTERFACE RS 232. Power plant UPSFormat of messages Communication systemPage 43(03/00) 獲取故障狀態(tài)PC | SOH | 91H | 05H | STX | UPS Address | “AL” | ETX | Checksum |NODE | SOH | A0H | 67H | STX | Address | Mode | Group | “AL” | date