83SR04C-E模塊,ABB使用區(qū)域
緊湊型設(shè)計FBM201/b/c/d模塊設(shè)計緊湊，采用堅固的擠壓鋁合金外殼電路的物理保護。
外殼專為安裝FBM而設(shè)計，提供各級環(huán)保，高達符合ISA標準S71.04的惡劣環(huán)境。
高精度為了獲得高精度，模塊在每個通道的基礎(chǔ)上結(jié)合了sigma delta數(shù)據(jù)轉(zhuǎn)換，這可以每25 ms提供一個新的模擬輸入讀數(shù)，
以及可配置的集成期，以刪除過程噪聲和電源線頻率噪聲。
83SR04C-E模塊每個時間段，F(xiàn)BM轉(zhuǎn)換每個模擬輸入數(shù)字值，平均這些值時間段，并將平均值提供給控制器。
易于拆卸/更換模塊可以在沒有拆除現(xiàn)場設(shè)備終端電纜、電源或通信布線。
視覺指示器集成到模塊前部提供可視狀態(tài)指示現(xiàn)場總線模塊（FBM）功能。
模塊化基板安裝模塊安裝在模塊化基板上（參見圖1）最多可容納四個或八個FBMs。模塊化基板為DIN導軌
安裝或機架安裝，包括信號冗余現(xiàn)場總線連接器，冗余獨立直流電源和終端電纜。
現(xiàn)場總線通信現(xiàn)場總線通信模塊或控制器
83SR04C-E模塊處理器與冗余2 Mbps模塊接口FBMs使用的現(xiàn)場總線。FBM201/b/c/d
模塊接受來自任一路徑的通信（A冗余2 Mbps現(xiàn)場總線的
路徑故障或在系統(tǒng)級切換模塊通過激活的路徑終端組件
現(xiàn)場輸入/輸出信號通過以下方式連接到FBM子系統(tǒng)
DIN導軌安裝TA（見圖1）。使用的助教關(guān)于FBM201/b/c/d模塊
COMPACT DESIGN
The FBM201/b/c/d modules have a compact design,
with a rugged extruded aluminum exterior for
physical protection of the circuits. Enclosures
specially designed for mounting the FBMs provide
various levels of environmental protection, up to
harsh environments per ISA Standard S71.04.
HIGH ACCURACY
For high accuracy, the modules incorporate sigma
delta data conversion on a per-channel basis, which
can provide a new analog input reading every 25 ms,
and a configurable integration period to remove any
process noise and power-line frequency noise.
Each time period, the FBM converts each analog
input to a digital value, averages these values over
the time period, and provides the averaged value to
the controller.
EASY REMOVAL/REPLACEMENT
The modules can be removed/replaced without
removing field device termination cabling, power or
communications cabling.
VISUAL INDICATORS
Light-emitting diodes (LEDs) incorporated into the
front of the modules provide visual status indications
of Fieldbus Module (FBM) functions.
MODULAR BASEPLATE MOUNTING
The modules mount on a modular baseplate (see
Figure 1) which accommodates up to four or eight
FBMs. The modular baseplate is either DIN rail
mounted or rack mounted, and includes signal
connectors for redundant fieldbus, redundant
independent dc power, and termination cables.
FIELDBUS COMMUNICATION
A Fieldbus Communication Module or a Control
Processor interfaces the redundant 2 Mbps module
Fieldbus used by the FBMs. The FBM201/b/c/d
modules accept communication from either path (A
or B) of the redundant 2 Mbps fieldbus – should one
path fail or be switched at the system level, the
module continues communication over the active
path.
TERMINATION ASSEMBLIES
Field I/O signals connect to the FBM subsystem via
DIN rail mounted TAs (see Figure 1). The TAs used
with the FBM201/b/c/d modules are described in
