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I am working on my first project of connecting to an AB Micrologix 1000 via modem and DF1 protocol. I do not have two phone lines so the only way I can test the auto answer on the modem is through a switchboard at work. I have set the modem to auto answer and the S register to answer at 1 ring. The second line rings but the modem's auto answer light just flashes at every ring and does not answer. I thought maybe the modem was bad so I tried a second (different brand) and it does the exact same thing. I have gone through the AT Commands and I cannot figure out what I am missing. I have a hard time believing that the modem can tell the line is ringing through a switchboard and that it should answer, (the ring sounds like a normal phone). I am going to try to get a friend to call my line at home, but it would be nice to test my systems at work.
Hope someone can help. Thanks
(P.S. my goal is to access the data tables with my Visual Basic program and an ActiveX control which I have gotten to work with a direct connection. The ActiveX has functions for dialing out which I have gotten to work, just can't get the other end to answer.)
Hope someone can help. Thanks
(P.S. my goal is to access the data tables with my Visual Basic program and an ActiveX control which I have gotten to work with a direct connection. The ActiveX has functions for dialing out which I have gotten to work, just can't get the other end to answer.)