97590-8 BD-PCI4PORT卡件
熱電偶輸入模塊
包括三個獨立的輸入通道。每個輸入通道接收來自每個點的可變電壓信號，
執(zhí)行熱電偶線性化和冷端補償，以及將結果轉換為攝氏度或
華氏的然后，每個通道傳輸16位有符號整數(shù)，表示0.125度/計數(shù)到3
按需提供主處理器。在TMR中模式，然后使用中值選擇算法確保為每次掃描更正數(shù)據(jù)。
每個熱電偶輸入模塊可編程以支持一種熱電偶類型，從J、K和T中選擇
97590-8 BD-PCI4PORT卡件用于標準熱電偶輸入模塊和來自J、K、T和E的通道激活故障指示燈，
從而激活機箱報警信號。模塊故障指示器僅報告通道故障，而不是
模塊故障。模塊繼續(xù)使用最多兩個故障通道。
熱電偶輸入模塊支持熱備盤功能，允許在線更換故障模塊。
熱電偶輸入模塊需要單獨的外部接線板
（ETP）與Tricon背板。每個模塊通過機械鍵連接到
防止在已配置機箱。隔離熱電偶輸入模塊。
97590-8 BD-PCI4PORT卡件隔離模塊允許用戶選擇高標度或低標度燃盡
TriStation 1131檢測。對于非隔離模塊，高檔或
范圍燃盡檢測取決在選定的字段終止上。
三重溫度傳感器位于現(xiàn)場終端面板上支持冷端補償。
熱電偶輸入的每個通道模塊執(zhí)行自動校準
使用內部精密電壓參考。在隔離模塊上故障冷端傳感器為
由前面板上的冷接點指示器發(fā)出警報。
每個模塊完成每個通道上的持續(xù)診斷。
Thermocouple Input Modules
Thermocouple Input (TC) modules
include three independent input chan
nels. Each input channel receives vari
able voltage signals from each point,
performs thermocouple linearization
and cold-junction compensation, and
converts the result to degrees Celsius or
Fahrenheit. Each channel then trans
mits 16-bit signed integers representing
0.125 degrees per count to the three
Main Processors on demand. In TMR
mode, a value is then selected using a
mid-value selection algorithm to ensure
correct data for every scan.
Each Thermocouple Input Module is
programmable to support one thermo
couple type, selected from J, K and T
for standard Thermocouple Input
Modules and from J, K, T and E for
channel activates the Fault indicator,
which in turn activates the chassis
alarm signal. The module Fault indi
cator merely reports a channel fault, not
a module failure. The module continues
to operate properly with as many as two
faulty channels.
Thermocouple Input Modules support
hot-spare capability, which allows
online replacement of a faulty module.
Thermocouple Input Modules require a
separate external termination panel
(ETP) with a cable interface to the
Tricon backplane.
Each module is mechanically keyed to
prevent improper installation in a
configured chassis.
isolated Thermocouple Input Modules.
The isolated module allows users to
select upscale or downscale burnout
detection with TriStation 1131. For
non-isolated modules, upscale or
downscale burnout detection depends
on the field termination selected.
Triplicated temperature transducers
residing on the field termination panel
support cold-junction compensation.
Each channel of a Thermocouple Input
Module performs auto-calibration
using internal precision voltage refer
ences. On the isolated module, a
faulting cold-junction transducer is
annunciated by a cold-junction indi
cator on the front panel.
Each module performs complete
ongoing diagnostics on each channel.
Failure of any diagnostic on any
