ACROMAG 651T-0600控制設備
通信部分?！癓OOP#”和“LIL CHAN”參數允許配置循環(huán)索引
Modbus數據的編號（x）或LIL回路數據的起始信道（n）。
輸入CL控制對來(lái)自網(wǎng)絡(luò )的環(huán)路數據的更改的本地仲裁。當未配置輸入CL時(shí)三個(gè)狀態(tài)輸出LO（在1.21固件中，此輸出命名為L(cháng)）、CN和CM將設置為高（1）并更改可以通過(guò)網(wǎng)絡(luò )命令或本地面板進(jìn)行。配置CL時(shí)，可以在本地進(jìn)行更改從按鈕開(kāi)關(guān)，如PB1SW輸出PS（配置為瞬時(shí)），并將從本地變?yōu)榭刂婆_或控制臺/計算機到本地，輸入的每個(gè)正向轉換。當輸出LO變高時(shí)，輸出CN也將變高，CM將變低，表明控制源將變?yōu)榭刂婆_
無(wú)論何時(shí)通過(guò)輸入CL上的正轉換或從網(wǎng)絡(luò )命令禁用本地。計算機可以使用網(wǎng)絡(luò )命令將CM狀態(tài)設置為高。NL輸出通常連接到的MD輸入按鈕塊PB1SW用于指示操作員面板上的C/L開(kāi)關(guān)位置，C為綠色LED，紅色為紅色
LO的LED。當控制器未能在看門(mén)狗內接收到Modbus網(wǎng)絡(luò )命令時(shí)，輸出WD將變高（1）
時(shí)間看門(mén)狗時(shí)間在STATN（站參數）功能塊中設置
。輸入A可用于：確認控制器中所有回路中的所有報警。輸出PN（脈沖開(kāi)啟）將變高0.5秒（或一個(gè)掃描周期，以較長(cháng)者為準）。條形圖閃爍由優(yōu)先級控制
報警或事件的設置。閃爍條形圖停止時(shí)，輸出PF（脈沖關(guān)閉）將變高0.5秒（例如，按下確認按鈕）。奇數功能塊是五個(gè)操作員顯示器之一，其：可在每個(gè)循環(huán)一次的基礎上用于配置本地操作員顯示功能以及網(wǎng)絡(luò )參數。請參閱下一頁(yè)的i|ware PC面板示例。奇數功能塊最多顯示16個(gè)離散變量。每個(gè)輸入具有相應的塊輸出，該塊輸出：等于變量模式為自動(dòng)時(shí)的輸入。每個(gè)輸入變量可以分配一個(gè)模式。價(jià)值在人身上，可以使用脈沖發(fā)生器改變輸出并按下確認按鈕。切換變量時(shí)對于手動(dòng)，它將始終等于輸入值，直到更改。LOOP#參數用于索引對的讀寫(xiě)Modbus和LIL網(wǎng)絡(luò )參數。當使用LIL時(shí)，還必須配置LIL CHAN參數?？匆?jiàn)有關(guān)網(wǎng)絡(luò )參數的更多信息，請參見(jiàn)第6節。視圖OD參數設置為“是”時(shí)，啟用操作員顯示可在本地查看和訪(fǎng)問(wèn)。在案例中其中需要查看顯示或操作參數僅來(lái)自網(wǎng)絡(luò )工作站，參數應為設置為NO。
Communications’ section. The ‘LOOP #’ and ‘LIL CHAN’ parameters enable configuration of a loop index
number (x) for Modbus data or a starting channel (n) for LIL loop data.
Input CL controls local arbitration of changes to loop data from the network. When input CL is not configured, the
three status outputs LO (in 1.21 firmware this output was named L), CN, and CM will be set high (1) and changes
can be made from a network command or the local faceplate. When CL is configured, it can be changed locally
from a pushbutton switch such as PB1SW output PS (configured as momentary) and will change from local to
console or console/computer to local with each positive transition of the input. Also, when output LO goes high,
output CN will also go high and CM will go low, indicating that the control source will change to Console
whenever Local is disabled, either by a positive transition on input CL or from a network command. The Computer
CM state can be set high using a network command. The NL output will normally be connected to the MD input of
pushbutton block PB1SW to indicate the C/L switch position on the operator faceplate, a green LED for C and a red
LED for LO.
Output WD will go high (1) when the controller fails to receive a Modbus network command within the watchdog
time. The watchdog time is set in the STATN (Station Parameters) function block. Input A can be used to
acknowledge all the alarms in all of the loops in a controller. Output PN (Pulse oN) will go high for 0.5 seconds (or
one scan cycle whichever is longer) whenever the bargraph flashes. Bargraph flashing is controlled by the priority
setting of alarms or events. Output PF (Pulse ofF) will go high for 0.5 sec when the flashing bargraph is stopped
(e.g. pressing the ACK button). ODD function blocks are one of five operator displays that
can be used on a one per loop basis to configure the local
operator display functions as well as network parameters.
See the i|ware PC faceplate example on the next page.
The ODD function block displays up to 16 discrete
variables. Each input has a corresponding block output that
is equal to the input when the variable mode is in Auto.
Each input variable can be assigned a mode. The value of
the output can be changed while in Man by using the pulser
and pressing the ACK button. When a variable is switched
to Manual it will always equal the input value until changed.
The LOOP # parameter is used to index reads and writes to
Modbus and LIL network parameters. When using the LIL,
the LIL CHAN parameter must also be configured. See
Section 6 for more information on network parameters.
The VIEW OD parameter, when set to YES enables the
operator display to be viewed and accessed locally. In cases
where it is desired to view display or operation parameters
only from a network workstation, the parameter should be
set to NO.
