HONEYWELL CC-TCF901占位模塊
每個(gè)通道可以配置為活動(dòng)或非活動(dòng)。
如果通道處于非活動(dòng)狀態(tài)，則其輸出為0V，且通道的模擬輸出數據不為
習慣于對于以下信道，信道的報警（可選離散輸入）數據不會(huì )更新
已配置為非活動(dòng)。CC-TCF901底板
如果通道配置從激活更改為非激活，模塊將停止
更新其報警數據。仍然可以使用模塊的配置的離散輸出位。
本地輸出默認值
除了能夠為模塊的
BIU中的數據、模塊的本地輸出默認值也是可配置的。這些模塊
本地默認值確定模塊是否將實(shí)際輸出電壓設置為零伏
如果發(fā)生模塊錯誤，則保留其最后的值。
保持最后狀態(tài)
如果通道的輸出默認值為保持最后狀態(tài)，并且存在用戶(hù)電源，則通道
在以下情況下，輸出保持其最后一個(gè)值：
1、BIU復位模塊。
2、在BIU超時(shí)期間內，未收到來(lái)自BIU的輸出數據。
3、背板電源丟失。
4、模塊的看門(mén)狗計時(shí)器過(guò)期。
輸出將繼續保持其最后狀態(tài)，直到模塊從接收到輸出數據
BIU或直到用戶(hù)電源斷開(kāi)。
Each channel can be configured as either active or inactive.
If a channel is Inactive, its output is 0V and the analog output data for the channel is not
used. Alarm (optional discrete input) data for the channel is not updated for a channel that
has been configured as Inactive.
If the configuration of a channel is changed from Active to Inactive, the module stops
updating its alarm data. Pre-existing alarms can still be cleared using the module’s
configured discrete output bits.
Local Output Defaults
In addition to being able to configure data defaults of zero or hold last state for the module’s
data in the BIU, local output defaults for the module are also configurable. These module
local defaults determine whether the module will set the actual output voltages to zero volts
or hold their last values if a module error occurs.
Hold Last State
If the output default of a channel is Hold Last State and user power is present, the channel
output holds its last value if:
1. The BIU resets the module.
2. No output data is received from the BIU within the BIU Timeout period.
3. Backplane power is lost.
4. The module’s watchdog timer expires.
Outputs will continue to hold their last states until the module receives output data from the
BIU or until user power is removed.
