集散控制系統PPD517 3BHE041576R3011的組成

當可選的LIL已安裝通信板。他們允許控制器從其他站點獲取全局數據麗爾。所有區塊編號按以下順序分配：每一次使用都是全站性的。在LIL中接收數據標準范圍為$80到$F80的格式。塊輸出為實數，以工程單位進行縮放使用最小和最大比例參數。輸出范圍是一種特殊的數據類型，包括最小值和最大刻度、DPP和ENG單位連接到具有范圍（RG PTR）的其他塊輸入輸出QS指示接收數據的量，以及當數據不好時，將變高（1）。這通常是與由于LIL而無法接收全局數據相關源的故障或錯誤配置。

可以將AIL功能分配給單個LIL信道。然后，它將具有可通過訪問的特定數據LIL。參數1是$80-$F80格式的接收數據（RD），該站將在分配的頻道。此LIL CHAN參數也可以設置為0。控制器仍將接收全局數據

但是所接收的數據將不被重新發送，并且其它信道數據（即，…）將不可訪問。AIN_功能塊轉換電壓輸入，具有校準期間定義的范圍，轉換為塊輸出信號

以工程單位進行縮放。輸出為：與內部的其他功能塊互連控制器。

可以輸入6個字符的ASCII值來標識輸出信號的工程單位。縮放輸出范圍是可配置的，出廠默認值為0.0到100.0 PRCT。范圍，例如300.0到500.0，表示也可以配置以攝氏度為單位的工程單位。

輸出范圍是一種特殊的數據類型，包括最小和最大刻度、DPP和ENG單位可以連接到具有范圍（RG）的其他塊PTR）輸入。

MPU控制器上有模擬輸入塊

板（CB）和I/O擴展板（EB）上。區塊名稱（ID）與案例一起在第8.4節中列出后端子號。雙線發射器的電源可在后端子上使用。

數字濾波器（時間常數）可用于抑制過程噪聲。平方根提取器也可用于：

線性化來自?P變送器，允許為流量單元配置塊輸出。輸出QS

指示模擬輸出信號O1的質量，當輸出O1不好時為高（1），當輸出O2不好時，為低（0）

好的質量差表示A/D轉換失敗或1-5Vdc輸入信號低于0.6VDC，表示：雙線發射器的開路或故障。

AIL_ function blocks are available when the optional LIL

communication board is installed. They allow the

controller to obtain global data from other stations on the

LIL. AIL block numbers are assigned in sequence with

each use, station wide. The data is received in the LIL

format having a standard range of $80 to $F80. The block

output is a real number and is scaled in engineering units

using the MIN and MAX SCALE parameters. The Output

Range is a special data type that includes the MIN and

MAX SCALE, the DPP, and the ENGUNITS that can be

connected to other blocks having a Range (RG PTR)

input.

Output QS indicates the quality of the received data and

will go high (1) when the data is bad. This is normally

associated with failure to receive global data due to a LIL

failure or a misconfiguration of the source.

The AIL function can be assigned to a single LIL channel. It will then have certain data that will be accessible over

the LIL. Parameter 1 is the received data (RD) in the $80-$F80 format and will be re-transmitted by this station on

the assigned channel. This LIL CHAN parameter can also be set to 0. The controller will still receive global data

from the other station but the received data will not be re-transmitted and the other channel data (i.e. MINSCALE,

...) will not be accessible.. AIN_ function blocks convert a voltage input, having a

range defined during calibration, into a block output signal

that is scaled in engineering units. The output is then

interconnected to other function blocks within the

controller.

A 6-character ASCII value can be entered to identify the

engineering units of the output signal. The scaled output

range is configurable and has a factory default of 0.0 to

100.0 PRCT. Ranges such as 300.0 to 500.0, representing

engineering units in degrees C, can also be configured.

The Output Range is a special data type that includes the

MIN and MAX SCALE, the DPP, and the ENGUNITS

that can be connected to other blocks with a Range (RG

PTR) input.

Analog Input blocks are available on the MPU Controller

Board (CB) and on the I/O Expander Board (EB). Block names (IDs) are listed in Section 8.4 together with the case

rear terminal numbers. Power for 2-wire transmitters is available at the rear terminals.

A digital filter (time constant) is available to dampen process noise. A square root extractor is also available to

linearize a flow signal from a ?P transmitter, allowing the block output to be configured for flow units. Output QS

indicates the quality of the analog output signal O1, and will be high (1) when output O1 is bad, and low (0) when

good. Bad quality signifies an A/D conversion failure or a 1-5Vdc input signal that falls below 0.6 Vdc indicating

an open circuit or failure of a 2-wire transmitter.