研华7442，7444IO卡的完整的技术资料和使用示例-Advantech 7442,7444 IO card, complete technical information and usage examples

DAQ数采卡：针对凌华科技pci-9111，使用VC_Callback函数实现双（多）通道连续输出采集数据-The channel continuous DAQ data acquisition card: double (multiple) for ADLINK pci-9111, use VC_Callback function output data collection