FBM208接口組件模塊
固件1.30及更高版本中的DOS_功能塊,向上傳輸至從控制器塊接收的16個開/關信號與LonWorks網絡上的遠程節點互連,作為單個16位字值。最多可以有6個DOS塊已使用,不超過Lon網絡或控制器的內存限制。區塊的每次使用將:分配了唯一的全站ID(如DOS01)。傳輸值的類型為SNVT_state,可以綁定到網絡
遠程節點中的變量,可以接收以下網絡變量:
這種類型。這些區塊將在LonWorks時可用
選項板安裝在352P、353或354N控制器中。
每個功能塊輸入具有與其關聯的模式。這個模式可以是正常模式或強制模式。使用電腦時
能夠發送LIL或Modbus命令,模式可以是已更改,強制狀態可以指定為高(1)或低(0)
價值通過網絡可訪問的值是兩個交換機:
輸入(N和F)和SPDT開關的位置,如所示
框圖?!?”模式為正常模式,“1”為強制模式。功能塊還具有與其相關聯的質量狀態。
當塊確定丟失時,該狀態將變為高(1)與綁定到該輸入的Lon節點的輸出通信。DOUT_功能塊用于打開遠程由外部電源供電的設備。反面外部電源的端子必須連接到這個車站很普通。晶體管開關將在以下情況下導通:塊輸入S為高(1),低時將關閉(0). 上有兩個數字輸出功能塊
控制器板。DTM_功能塊提供移位寄存器以保持模擬輸入信號A持續一段時間,并將其從寄存器對寄存器,以在參數死區時間中配置的輸入和輸出。
輸入AT可用于將死區時間調整為外部信號。用作塊的實際移位寄存器
輸出將等于輸入的整個值(例如0.184=寄存器0、1.897=寄存器1)。
輸出MA將提供寄存器0的移動平均值
輸出寄存器除以寄存器數量
[例如,輸出寄存器=50,MA=(R0+R1+R2+…+R50)/51]。
輸入E斷言高(1)將啟用DTM塊的操作。未配置此輸入時,將設置高。低(0)輸入將導致所有寄存器和輸出等于輸入A。
通電-在熱啟動或冷啟動期間,所有輸出將初始化為0,所有寄存器將初始化為第一次掃描時輸入的值。
DOS_ function blocks, in firmware 1.30 and higher, transmit up
to 16 on/off signals received from a controller block
interconnection to a remote node on the LonWorks network as a
single 16-bit word value. A maximum of 6 DOS 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. DOS01). The transmitted
value is of type SNVT_state and can be bound to a network
variable in a remote node that can receive a network variable of
this type. These blocks will be available when the LonWorks
option board is installed in a 352P, 353, or 354N controller.
Each function block input has a mode associated with it. The
mode can be either NORMAL or FORCED. When using a PC
capable of sending LIL or Modbus commands, the mode can be
changed and the forced state can be assigned a high (1) or low (0)
value. The values accessible over the network are the two switch
inputs (N and F) and the position of the SPDT switch illustrated in
the block diagram. A mode of ‘0’ is Normal and ‘1’ is Forced.
The function block also has a quality status associated with it.
This status will go high (1) when the block determines it has lost
output communication with the Lon node bound to that input. DOUT_ function blocks are used to turn on remote
devices powered from an external source. The negative
terminal of the external power source must be connected to
station common. The transistor switch will turn on when
the block input S is high (1) and will turn off when low
(0). Two digital output function blocks are available on the
Controller Board.DTM_ function blocks provide shift registers to hold the
analog input signal A for a period of time and shift it from
register to register to provide an overall delay between
input and output as configured in parameter DEADTIME.
Input AT can be used to adapt the DEADTIME to an
external signal. The actual shift register used as the block
output will equal the whole value of input AT (e.g. 0.184 =
register 0, 1.897 = register 1).
Output MA will provide the moving average of register 0
to the output register divided by the number of registers
[e.g. output register = 50, MA = (R0+R1+R2+......+R50)/51].
Input E asserted high (1) will enable the operation of the DTM block. When this input is not configured, it will be
set high. A low (0) input will cause all registers and the outputs to equal the input A.
POWER UP - During a warm or cold start, all outputs will be initialized at 0 and all registers will be initialized to
the value of the input on the first scan.