电表645规约485通迅 VB语言开发对目前国内的大部分电表厂家都适用-485 Statute 645 meter communication VB language of the majority of the current domestic meter is applicable to all manufacturers

VB基于645规约的电表行业485通讯抄表程序-VB on the Statute of the meter 645 meter reading process industry 485