| 詳細參數(shù) | |||
|---|---|---|---|
| 品牌 | METSO | 型號 | A413240 |
| 結構形式 | 模塊式 | 安裝方式 | 控制室安裝 |
| LD指令處理器 | 硬PLC | 功能 | PC板PIC2卡處理接口 |
| 工作電壓 | 電源組24VDC | 輸出頻率 | 47至63Hz |
| 產品認證 | CQ | 環(huán)境溫度 | 5至,55°C |
| 加工定制 | 否 | ||
METSO A413240 原裝電腦板
產品編號 A413240
品牌 美卓
類別 控制單元
描述 電路板
高度 30 毫米
長度 190 毫米
重量 0.12 公斤
寬度 130 毫米
A413240 可編程控制器的工作過程包括兩部分：自診斷及通信響應的固定過程和用戶程序執(zhí)行過程，PLC在每次執(zhí)行用戶程序之前，都先執(zhí)行故障自診斷程序、復位、監(jiān)視、定時等內部固定程序，若自診斷正常，繼續(xù)向下掃描，然后PLC檢查是否有與編程器、計算機等的通信請求。如果有與計算機等的通信請求，則進行相應處理。當A413240 處于停止（STOP）狀態(tài)時，只循環(huán)進行前兩個過程。而在PLC處于運行（RUN）狀態(tài)時，PLC從內部處理、通信操作、輸入掃描、執(zhí)行用戶程序、輸出刷新五個工作階段循環(huán)工作。每完成一次以上五個階段所需要的時間稱為一個掃描周期。
掃描周期是PLC的一個重要指標，小型PLC的掃描周期一般為十幾毫秒到幾十毫秒。A413240 的掃描周期長短取決于掃描速度和用戶程序的長短。毫秒級的掃描時間對于一般工業(yè)設備通常是允許的，A413240 對輸入的短暫滯后也是允許的。但對某些I/O快速響應的設備，則應采取相應的處理措施。如選擇高速CPU，提高掃描速度；選擇快速響應模塊、高速計數(shù)模塊以及不同的中斷處理等措施減少滯后時間。對于用戶來說，要提高編程能力，盡可能優(yōu)化程序；而在編寫大型設備的控制程序時，盡量減少程序長度，選擇分支或跳步程序等，都可以減少用戶程序執(zhí)行時間。
The working process of a413240 programmable controller includes two parts: the fixed process of self diagnosis and communication response and the execution process of user program. Before each execution of user program, PLC executes fault self diagnosis program, reset, monitoring, timing and other internal fixed programs. If the self diagnosis is normal, continue to scan downward, and then PLC checks whether there is any connection with programmer Communication request of computer, etc. If there is a communication request with a computer, etc., it is processed accordingly. When a413240 is in the stop state, only the first two processes are cycled. When PLC is in the run state, PLC circulates from five working stages: internal processing, communication operation, b scanning, execution of user program and output refresh. The time required to complete each of the above five stages is called a scanning cycle
Scanning cycle is an important index of PLC. The scanning cycle of Small PLC is generally more than ten milliseconds to tens of milliseconds. The length of the scanning cycle of a413240 depends on the scanning speed and the length of the user program. Millisecond scanning time is usually allowed for general industrial equipment, and the short delay of a413240 to b is also allowed. However, for some equipment with fast I / O response, corresponding treatment measures shall be taken. If high-speed CPU is selected, the scanning speed can be improved; Select fast response module, high-speed counting module and different interrupt processing measures to reduce the lag time. For users, we should improve the programming ability and optimize the program as much as possible; When writing the control program of large equipment, try to reduce the program length and select branch or skip program, which can reduce the execution time of user program.
以下型號：
920050 美卓自動化
M851042 美卓自動化
M8513611 美卓自動化
A413160 美卓自動化
532093624 美卓自動化
5470703 美卓自動化
