We're trying to essentially use a IC693CMM321 (Ethernet) as a replacement for a IC693CMM311 (RS-232-C) communications module. We wrote our own serial driver for the RS-232-C port on a PC in VB and it works well but suffers from occassional communications errors and general s-l-o-w operation. We're trying to just upgrade from RS-232 to Ethernet and (hopefully) not have to re-invent the wheel at the VB end of things. We've successfully installed the CMM321 module and set up it's IP parameters and we can PING it from any PC on our network. Now what? We've read GFK-1186/GFK-1541 but they don't seem to explain just how to read %I/%Q/%R data from the PC. In GFK-1541 it says that "No PLC programming is required for server operation." but it doesn't mention HOW to read ANYTHING from the PLC. I tried TELNETing to the module, no luck. Http and Ftp didn't work either. All we really need is a *HINT* where to start. 这是我外籍同学的问题 我只是代po的 麻烦乡民帮忙 -- 国小老师：这个国中会教啦 国中老师：这个高中会教啦 高中老师：这个大学会上啦 大学教授：这个问题想必大家国小就会了 学生：（干林老师！） 林老师：\("▔□▔)/ --

※ 发信站: 批踢踢实业坊(ptt.cc) ◆ From: 140.118.207.122 ※ 编辑: larry310145 来自: 140.118.207.122 (01/15 19:16)