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Guest Guest_larry

remote modem response

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Hi, everyone, I have a problem with modem response and would like to get some help from you. I have an application which will use a local modem to dial up a remote modem which is connnected to a device(PLC) on its serial port. I can successfully establish the connection between the local modem and remote modem and I can send command (binary code) to the remote modem. The remote device also send back acknowlegement back to the remote modem, but for some reason the remote modem doesn't relay the message back to the local modem. All the standard coommunication setting like the baudrate ,parity I checked are all Ok, but I just couldn't get any response back on the local modem. Do I miss some the modem settings here, if anyone can give me some suggestion, that will be great. Thanks, larry

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Take a look at this article: http://www.mrplc.com/kb/index.php?page=ind...ex_v2&id=9&c=11 See if anything in there sticks out that you might be able to try.

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