3BHE047217R0101使用區(qū)域,ABB自動化卡件
CSR的長度為16位,詳見表4.2-1和4.2-2。隨后,詳細描述了每個控制位和狀態(tài)標志的功能,在相關的編程討論中。D0到D5選擇模擬輸入通道要轉換。這些位只需要隨機輪詢或隨機選擇中斷模式。當D9為高“1”時,所有車載A/D定時網(wǎng)絡已清除。
當D10設置為高“一”時,可編程計時器開始計數(shù),如果它以前被激活過已編程。
當D11設置為高“一”時,車載外部A/D啟動邏輯能夠接受外部觸發(fā)如果D12低,則ADC編碼格式為偏移二進制“零”,如果D12為高“一”,則為二的補碼。單個A/D轉換或轉換掃描是每次將“一”寫入此控件時啟用位和ADC隨機或掃描操作模式由D6到D8選擇。
3BHE047217R0101使用區(qū)域如果該位設置為“1”,則故障指示燈熄滅,并且如果位為零,則開啟。當該位設置時,模擬輸入采集時間從15μs增加到28μs。該位應在上選擇增益500時設置可編程增益放大器。當D9為高“1”時,所有車載A/D定時網(wǎng)絡均為變明朗。
當D10設置為高“一”時,可編程定時器啟動如果之前已編程,則計數(shù)。
當D11設置為高“一”時,車載外部A/D啟動邏輯允許接受外部觸發(fā)器。如果D12為低“零”或2,則ADC編碼格式為偏移二進制如果D12為高“一”,則進行補碼。
當讀取高“一”時,該標志表示單個a/D掃描關閉所有通道已完成。僅用于掃描輪詢模式。
如果該位設置為“1”,則故障指示燈熄滅,如果該位設置為“1”,則故障指示燈點亮為“零”。當讀取高“一”時,該標志表示A/D轉換已完成單個通道的。僅用于隨機輪詢模式
The CSR is 16 bits in length, and is detailed in Tables 4.2-1 and 4.2-2.
The function of each control bit and status flag is described in detail, subsequently,
in the associated programming discussions.
D0 through D5 select the analog input channel
to be converted. These bits only need to be
selected in RANDOM POLLING or RANDOM
INTERRUPT MODE.
When D9 is high "one", all on-board A/D timing
networks are cleared.
When D10 is set high "one", the Programmable
Timer starts counting if it has been previously
programmed.
When D11 is set high "one", the on-board external
A/D start logic is enabled to accept an external
trigger.
ADC coding format is offset binary if D12 is low
"zero", or two's complement if D12 is high "one".
A single A/D conversion or conversion scan is
enabled each time a "one" is written to this control
bit and an ADC RANDOM or SCANNING
OPERATING MODE is selected by D6 through D8.
The Fail LED is OFF if this bit is set to "one", and is
ON if the bit is zero.
When this bit is set the Analog Input Acquisition
time increases from 15 μs to 28 μs. This bit should
be set when a gain of 500 is selected on the
programmable gain amplifier.When D9 is high "one", all on-board A/D timing networks are
cleared.
When D10 is set high "one", the Programmable Timer starts
counting if it has been previously programmed.
When D11 is set high "one", the on-board external A/D start
logic is enabled to accept an external trigger.
ADC coding format is offset binary if D12 is low "zero", or two's
complement if D12 is high "one".
This flag when read high "one" indicates that a single A/D scan
off all channels has been completed. Used only in SCANNING
POLL MODE.
The Fail LED is OFF if this bit is set to "one", and is ON if the bit
is "zero".
This flag when read high "one" indicates that an A/D conversion
of a single channel has been completed. Used only in
RANDOM POLLING MODE.