blackbird307
Member
We have a customer that is having control system problems. They use a PLC that has been set-up for phone/fax remote access.
I have a US Robotics Sportster fax modem lying around. As soon as I try and connect to the PLC I get a message saying "Dialing", and then almost immediately after I get a message saying "Hang up". And this repeats 5 times until I get a message saying connection failed.
I think my modem may need to be configured.
There are some switches that correspond to stuff im not too familiar with and i was hoping if someone would be able to help me out.
1 :
UP = Data Terminal Ready Normal
Down = DTR Override
2 :
UP = Verbal request codes
Down = Numeric result codes
3 :
UP = Suppress result codes
Down = Display result codes
4 :
Up = Echo offline commands
Down = No echo, offline commands
5 :
UP = Auto answer on first ring or higher if specified in NVRAM
Down = Suppress Auto answer
6 :
UP = Carrier detect normal
Down = Carrier detect override
7 :
UP = Load NVRAM defaults
Down = Load factory defaults
8 :
UP = Dumb mode
Down = Smart mode
Current configuration
1 = up
2 = up
3 = down
4 = up
5 = up
6 = up
7 = down
8 = down
I have a US Robotics Sportster fax modem lying around. As soon as I try and connect to the PLC I get a message saying "Dialing", and then almost immediately after I get a message saying "Hang up". And this repeats 5 times until I get a message saying connection failed.
I think my modem may need to be configured.
There are some switches that correspond to stuff im not too familiar with and i was hoping if someone would be able to help me out.
1 :
UP = Data Terminal Ready Normal
Down = DTR Override
2 :
UP = Verbal request codes
Down = Numeric result codes
3 :
UP = Suppress result codes
Down = Display result codes
4 :
Up = Echo offline commands
Down = No echo, offline commands
5 :
UP = Auto answer on first ring or higher if specified in NVRAM
Down = Suppress Auto answer
6 :
UP = Carrier detect normal
Down = Carrier detect override
7 :
UP = Load NVRAM defaults
Down = Load factory defaults
8 :
UP = Dumb mode
Down = Smart mode
Current configuration
1 = up
2 = up
3 = down
4 = up
5 = up
6 = up
7 = down
8 = down