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. 這是我外籍同學的問題 我只是代po的 麻煩鄉民幫忙 -- 國小老師：這個國中會教啦 國中老師：這個高中會教啦 高中老師：這個大學會上啦 大學教授：這個問題想必大家國小就會了 學生：（幹林老師！） 林老師：\("▔□▔)/ --

※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.118.207.122 ※ 編輯: larry310145 來自: 140.118.207.122 (01/15 19:16)