RELIANCE 57405控制板
所有輸入類(lèi)型都經(jīng)過(guò)工廠(chǎng)校準，不需要現場(chǎng)校準。然而，對于輸出必須進(jìn)行調整以滿(mǎn)足當地標準，現場(chǎng)校準功能可用于替代工廠(chǎng)校準對于所選的輸入類(lèi)型。保留出廠(chǎng)校準，以便將輸入返回出廠(chǎng)
通過(guò)在校準選擇中存儲“FAC”，隨時(shí)進(jìn)行校準。表3.5提供了以下輸入值：用于執行現場(chǎng)校準。校準期間，驗證模式可用于通過(guò)查看傳感器輸入全范圍。在校準驗證模式下查看的信號采用基本測量單位（例如，°C溫度，毫伏的mv），并且不受溫度單位轉換、數字濾波器、縮放或輸出偏置調整?？梢栽诓榭茨Ｊ较虏榭磻昧诉@些參數的完整塊輸出循環(huán)內配置。在熱啟動(dòng)、熱啟動(dòng)或冷啟動(dòng)期間，功能塊將暫時(shí)旁通數字濾波器，使輸出能夠在實(shí)際硬件輸入信號處初始化。請注意，現場(chǎng)校準為：更改傳感器類(lèi)型時(shí)將被擦除。3.2.11 AIP_-模擬輸入水平百分比AIP_功能塊轉換模擬信號
使用lev百分比類(lèi)型SNVT（標準網(wǎng)絡(luò )變量類(lèi)型）從LonWorks接收網(wǎng)絡(luò )成塊輸出，在工程中按比例縮放
單元，用于與其他功能塊互連在控制器內。最多25個(gè)AIP_可以使用塊，直到節點(diǎn)的限制
在Lon網(wǎng)絡(luò )上允許，或內存限制為控制器。區塊的每次使用將：分配了唯一的全站ID（如AIP06）。
當LonWorks時(shí)
這些塊可用選項板安裝在352P、353或354N中控制器。輸入連接通過(guò)以下方式建立：
從遠程“綁定”網(wǎng)絡(luò )變量AIP網(wǎng)絡(luò )變量的模擬節點(diǎn)_功能塊。
可以輸入6個(gè)字符的ASCII值識別輸出信號的工程單位。輸出縮放（MINSCALE和MAXSCALE）提供給
建立工程選擇范圍?？梢圆榭碅IP塊的輸入網(wǎng)絡(luò )變量的編號在配置模式下。這在其他設備需要綁定時(shí)非常有用。輸出范圍是一個(gè)特殊的數據類(lèi)型，包括最小和最大刻度、DPP和可連接到其他的ENGUNITS具有范圍（RG PTR）輸入的塊。塊輸出QS指示輸出信號O1的質(zhì)量狀態(tài)，當輸出為壞時(shí)將變高質(zhì)量質(zhì)量差通常表示LonWorks網(wǎng)絡(luò )內的通信丟失。
All input types are factory calibrated and do not require field calibration. However, for those cases where outputs must be adjusted to meet a local standard, a field calibration feature is available to override the factory calibration for the input type selected. The factory calibration is retained so that the input can be returned to the factory calibration at any time by storing ‘FAC’ in the calibration selection. Table 3.5 provides the input values that are used to perform a field calibration. A verify mode is available during calibration to view the sensor input over the full range. The signal that is viewed, in the calibration verify mode, is in the basic units of measure (e.g. °C for temperature, mv for millivolts) and is not affected by the temperature units conversion, digital filter, scaling, or the output bias adjustment. The full block output with these parameters applied can be viewed in the VIEW mode within loop configuration. During a hot, a warm or a cold start, the function block will temporarily by-pass the digital filter to enable the output to initialize at the actual hardware input signal. Note that the field calibration is erased when the SENsor TYPE is changed.3.2.11 AIP_ - Analog Input lev_Percent AIP_ function blocks convert an analog signal with a lev-percent type SNVT (Standard Network Variable Type) received from the LonWorks network into a block output, scaled in engineering units, for interconnection to other function blocks within the controller. A maximum of 25 AIP_ blocks can be used, up to the limit of nodes allowed on the Lon network or the memory limit of the controller. Each use of the block will be assigned a unique station wide ID (e.g. AIP06). These blocks are available when the LonWorks option board is installed in a 352P, 353, or 354N controller. The input connection is established by ‘binding’ a network variable from the remote analog node to the network variable of the AIP_ function block. A 6-character ASCII value can be entered to identify the engineering units of the output signal. Output scaling (MINSCALE and MAXSCALE) is provided to establish an engineering range of choice. The number of the input network variable to the AIP block can be viewed in the configuration mode. This is useful when other devices need this for binding. 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. The block output QS indicates the quality status of the output signal O1 and will go high when the output is of bad quality. Bad quality usually indicates a loss of communications within the LonWorks network.
