P0800CF

描述

当PDIUSBD12向处理器发出中断请求时，处理器读取中断寄存器，根据中断源调用相应的中断服务处理程序，中断服务处理程序设置相应的事件标志，如果有数据传输并作相应的数据处理。根据USB协议[4]，控制端点0用来负责设备的枚举，如获取设备各种描述符、设置地址、获取海量存储设备的逻辑单元数目和复位设备等操作。这些操作是通过中断和主循环共同完成的。这里端点1未用到，可以忽略其中断。端点2是主端点，用作Bulk-Only传输。在端点2的中断处理程序中实现Bulk-Only传输及命令解析和执行。

其中，中断服务处理程序与主循环通过一个名为ControlData的结构体变量进行通讯。主循环初始化I／O口、事件标志bUSBFlags、建立包数据缓冲区、定时器和中断，重新连接USB总线后进入一个无限循环，当该循环轮询到某事件标志被置位时便进行相应的处理。特别是在设备枚举中当建立标志被置位时，根据设备请求的类型域ControlData，DeviceRequest，bmRequestType来确定是标准设备请求、厂商设备请求还是类型设备请求，再根据请求类

欧美品牌停产的，常用的“PLC”备品备件

我司产品应用于以下领域：

1,《发电厂DCS监控系统》

2,《智能平钢化炉系统制造》

3,《PLC可编程输送控制系统》

4,《DCS集散控制系统》
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5,《智能型消防供水控制系统》

6,《化工厂药液恒流量计算机控制系统》

7,《电气控制系统》造纸,印染生产线,变电站综合自动化控制系列

本特利，英维思，伍德沃德，福克斯波罗、西屋、瑞恩、施耐德莫迪康、ABB、AB、西门子、摩托罗拉、GE发那科、安川、博世力士乐，ACSO，力士乐等各大品牌的DCS系统配件，机器人系统配件，大型伺服系统备件。

CONVUM VACUUM GENERATOR,TYPE CV-20LSCK

Convum MPS-V2R-G Vacuum Sensor

PARKER/CONVUM VACUUM AIR GENERATOR CV-30AHSN

Lot/4 Convum PS-50-F Vacuum Suction Pads

1 NIB CONVUM MPS-V3RC-GHA VACUUM SENSOR MPSV3RCGHA

PARKER CONVUM VACUUM SOLENOID VALVE MC2S10HSZM24B5N

Convum Vacuum Solenoid CVA-15HS

CKD CONVUM 3/8″PORT VACUUM FILTERS VF-6

CKD CONVUM 1/4″PORT VACUUM FILTERS VF-5

Convum PF-50 Vacuum Suction Pad

CONVUM VF-5 VACCUM GENERATOR FILTER CV-15,MCA-10/13

CONVUM FILTER VF-5 MYOTOHU COMPRESSOR FILTER 1/4 NPT

Parker Convum TYS-20B-30 Bulkhead Level Compensator

Myotohu Convum CVA-15QS Vacuum Actuator

CONVUM CVK-15HRZD PRESSURE SOLENOID VALVE CONVUM

Parker Convum CV-25HSN

CONVUM CVA-15HS35GDN NSFP CVA15HS35GDN

CONVUM MYOTOHU CVT05HS

PARKER CONVUM VACUUM SOLENOID VALVE MC2S07HSZM24B5N

CONVUM CV-15HS NSFP CV15HS

Convum Pneumatic Valve Manifold CVK-15HRZD Lot of 2

CONVUM CVA-15OS USPP CVA15OS

CONVUM CVA-15QS USPP CVA15QS

DNS CONVUM SENSOR,DIGITAL 2-AE-J0043 D4M5-GHA-D4

CONVUM CV-10HSCK NSFP CV10HSCK

CONVUM VF-3 VACUUM FILTER 1/8″

Convum APS030-PNP-SA2 Vacuum Sensor

CONVUM VACUUM FILTERS VF-6

CONVUM CV-10LS USPP CV10LS

Convum Manifold Solenoid Valve CVK-15HRZD 24V MVS SMC

CONVUM CVA-10LSB NSPP CVA10LSB

PARKER CONVUM PF-120D VACUUM CUP PAD

PARKER CV15HSN CONVUM VALVE CV-15HSN 1/4 INCH 1/4″

Convum Myotoku CVK-15HRZD 24BD Pneumatic Solenoid(794)

CONVUM PRESSURE DISPLAY SWITCH MPS-71E-G-D5

Convum Parker PFYK-25-U Vacuum Suction Cups

MYOTOKY LDT.CVA-15HSA CONVUM VALVE

Parker Convum CEK27HSZC24PBLN Vacuum Pump Generator

Convum Vacuum Generator Pump CV10HSC

Convum Vacuum Generator Pump CCV10HSCK NEW

2 Convum Parker PFYK-25-SI Vacuum Suction Cups

PARKER generator CONVUM VACUUM PUMP PA244-RV3.5

MYOTOKU/CONVUM CV-10LS GENERATOR 10MM LOW VACUUM

MYOTOKU/CONVUM CV-10LS GENERATOR 10MM LOW VACUUM

CONVUM MVS-030-W NSFP MVS030W

CONVUM SENSOR,VACUUM FOR SPIN SD MPS-R3S5-GHA-D

DNS CONVUM?SENSOR,PRESSURE 2-AE-J0076 P3M5-GHA-D

CONVUM CVK-20HSABC-24B?L USPP CVK20HSABC24BL

DNS CONVUM SENSOR,DIGITAL SPI 2-AE-J0012 R3S5-GHA-D

Myotohu Convum MVS-030 Vacuum Switch

MYOTOKU/CONVUM CVF-1-10LS GENERATOR 1MM

CONVUM MPS-V2R-C NSFP MPSV2RC

CONVUM MPS-P1N-PC NSFP MPSP1NPC

DNS CONVUM PRESSURE SENSOR ASSY 2-AE-J0067 R3S5-GHA-D

CONVUM CYLINDER TKY-0-4.5X3

Convum Vacuum Switch CVA-D,CVA-10,CVA-V3B

Myotoky LTD.Model:CVA-10HR-VDN-24?B Convum Valve

4-Convum Vacuum Technology Valves CVK-15HSZC 24 VDC

MYOTOKU/CONVUM CVF-1-10HRAB/MV?S-030-AB VAC SENSOR

MYOTOKU CONVUM CVR Vacuum Switch

CONVUM CVF-2-05HS VACUUM SWITCH SOLENOID VALVE

CONVUM MPS-V2R-PGA NSPP MPSV2RPGA

Parker MPS Convum PRESSURE Switch P6N-PG(11)

Parker Convum CVX-0260-B-E0S-?DN PA244-RV3.5 Vacuum Pump

MYOTOKU/CONVUM VF-3 VACUUM FILTER

CONVUM MPS-V3RC-G-M VACUUM PRESSURE SENSOR

Parker Convum Vacuum LED Switch MPS-V2N-PC

Parker Convum CVX0260BE0SDNNA Vacume Pump PA244-RV3.5

Parker Convum MPS-R3F5-NC Stainless Pressure Sensor New

Convum CVA-DN/CVA-15HS 24BL/C-0054-CVA

Myotoku Convum F-1 Vacuum Ejector C-21-316

Convum VF-3

Convum CVA-15HR-B Vacuum Release Solenoid Valve NNB

CONVUM A QUICK RELEASE VALVE CVA-D NO.EKT(15-19)

Convum MPS-V9M-NG-YOK Sensor

Convum MC2S07HS-ZM24B5?R-8Y19 Valve w/A00SC23-Z06-028

Convum MVS-030-AB Vacuum Sensor NPN MVS030AB NIB

Parker Convum MVS-030ABP PNP Sensor MVS030ABP NIB

Convum VF-6 Pneumatic Port Vacuum Filter NIB

Convum VF-3 vacuum filter assembly 1/8″w/element