HCU37003703E配置說(shuō)明,TRICONEX卡件
程序示例下面的編程示例演示了如何對most進(jìn)行編程A/D操作模式。請參閱程序大綱以了解每個(gè)程序的說(shuō)明編程模塊。課程大綱*I.離開(kāi)自動(dòng)掃描模式。
*二、。初始化第四部分的車(chē)載計時(shí)器。*三、掃描輪詢(xún)模式+外部觸發(fā)器示例*設置由外部觸發(fā)器啟動(dòng)的掃描。*將通過(guò)讀取3112狀態(tài)位來(lái)確定結束。*四、掃描中斷模式+車(chē)載定時(shí)器示例*設置由車(chē)載計時(shí)器啟動(dòng)的掃描。*結束將由中斷發(fā)出信號。
HCU37003703E配置說(shuō)明*五、隨機輪詢(xún)模式示例*使用隨機訪(fǎng)問(wèn)/輪詢(xún)模式進(jìn)行64次轉換。*VI.將電路板恢復為自動(dòng)掃描模式。二、初始化第四部分的車(chē)載計時(shí)器。*如果計時(shí)器突然關(guān)閉（在輸出選通返回高電平之前），則*可以阻止外部觸發(fā)器操作，直到計時(shí)器重新初始化。*選通所用的時(shí)間等于從第二秒到最后一秒的時(shí)間*如果2或3級聯(lián)，則計數器。這里的例子是1毫秒。*這會(huì )將計時(shí)器設置為1秒延遲。應連接跳線(xiàn)J7-2*通過(guò)分流器連接至J8-2。J7和J8的其余部分不應有分流器。計時(shí)器*是一個(gè)英特爾8254解包程序注意安全VMIC產(chǎn)品上組裝的一些組件可能對靜電放電敏感，可能發(fā)生損壞承受高能靜電場(chǎng)的電路板。
未使用的電路板應存放在他們是被運來(lái)的。當木板放在長(cháng)凳上時(shí)對于配置等，建議使用導電材料插入電路板下方，以提供導電材料插入電路板下方，以提供導電分流器。收到后，在運輸集裝箱內發(fā)現的任何預防措施應觀(guān)察。所有物品應仔細打開(kāi)包裝，并徹底檢查裝運期間可能發(fā)生的損壞。董事會(huì )應檢查有無(wú)損壞的部件、損壞的電路板、熱損壞和其他可見(jiàn)污染。因運輸損壞引起的所有索賠應提交給承運人，并向VMIC發(fā)送一份完整報告，同時(shí)請求關(guān)于受損物品處置的建議。5.2物理安裝注意安全通電時(shí)不要安裝或拆卸電路板。斷開(kāi)設備電源，將電路板插入適當的插槽機箱的。同時(shí)確保電路板在支撐卡引導，使電路板平穩向前滑動(dòng)，使其緊靠配對接頭直至牢固就位。5.3通電前：檢查表在VMEbus系統中安裝電路板之前，請檢查以下內容確保電路板為預期應用做好準備的項目。a、 有與理論和編程相關(guān)的章節，第3節是否已審查并應用于系統需求？
PROGRAM EXAMPLE
The following programming example demonstrates how to program most
of the A/D operating modes. Refer to the program outline for a description of each
programming module. program outline
* I. Leave autoscan mode.
* II. Initialize on-board timer for part IV.
* III. SCANNING POLL MODE + EXTERNAL TRIGGER example
* Set up a scan which is started by an external trigger.
* The end will be determined by reading a 3112 status bit.
* IV. SCANNING INTERRUPT MODE + ON-BOARD TIMER example
* Set up a scan which is started by the on-board timer.
* The end will be signaled by an interrupt.
* V. RANDOM POLL MODE example
* Do 64 conversions using the random access/poll mode.
* VI. Put the board back in autoscan mode. II. Initialize on-board timer for part IV.
*If the timer was shut off abruptly (before output strobe returns high) it
* can prevent external trigger operation until the timer is re-initialized.
* The time the strobe takes is equal to the period of the second-to-last
* counter if 2 or 3 are cascaded. For the example here, it is 1 millisecond.
*This sets up the timer for a 1 second delay. Jumper J7-2 should be connected
* to J8-2 by a shunt. The rest of J7 and J8 should not have shunts. The timer
* is an Intel 8254UNPACKING PROCEDURES
CAUTION
SOME OF THE COMPONENTS ASSEMBLED ON VMIC's PRODUCTS MAY BE
SENSITIVE TO ELECTROSTATIC DISCHARGE AND DAMAGE MAY OCCUR ON
BOARDS THAT ARE SUBJECTED TO A HIGH ENERGY ELECTROSTATIC FIELD.
UNUSED BOARDS SHOULD BE STORED IN THE SAME PROTECTIVE BOXES IN
WHICH THEY WERE SHIPPED. WHEN THE BOARD IS TO BE LAID ON A BENCH
FOR CONFIGURING, ETC., IT IS SUGGESTED THAT CONDUCTIVE MATERIAL BE
INSERTED UNDER THE BOARD TO PROVIDE THAT CONDUCTIVE MATERIAL BE
INSERTED UNDER THE BOARD TO PROVIDE A CONDUCTIVE SHUNT.
Upon receipt, any precautions found in the shipping container should be
observed. All items should be carefully unpacked and thoroughly inspected for
damage that might have occurred during shipment. The board (s) should be
checked for broken components, damaged circuit board(s), heat damage, and
other visible contamination. All claims arising from shipping damage should be
filed with the carrier and a complete report sent to VMIC together with a request for
advice about the disposition of the damaged item(s).
5.2 PHYSICAL INSTALLATION
CAUTION
DO NOT INSTALL OR REMOVE BOARDS WHILE POWER IS APPLIED.
De-energize the equipment and insert the board into an appropriate slot
of the chassis. While ensuring that the board is properly aligned and oriented in
the supporting card guides, slide the board smoothly forward against the mating
connector until firmly seated.
5.3 BEFORE APPLYING POWER: CHECKLIST
Before installing the board in a VMEbus system, check the following
items to ensure that the board is ready for the intended application.
a. Have the sections pertaining to theory and programming, Sections 3
and 4, been reviewed and applied to system requirements?
