
TrendReader Standard 2
167
2005 ACR Systems Inc.
Timeout
9.3.1.2.8
Timeout is the length of time your computer will wait for a remote site to answer before it
9.3.2 Setting up the Remote Logger Station
The modem used at the remote logger site needs to be configured to work with data loggers.
The timing of signals generated from
must be preserved over the
modem link. High-speed modems have features such as data compression, error correction,
extra buffers and proprietary protocols. These enhance computer-to-computer
communications but interfere with data logger transmission.
9.3.2.1
Software Configuration
Connect the remote modem to your computer (you cannot configure a modem remotely).
Then, set the remote modem's DIP switches to the same settings as the computer station
To communicate with the modem you will need a terminal program, such as Hyperterminal
availabe in Windows. In Windows, choose
Start >> Accessories >> Hyperterminal
. When you have chosen the correct COM port:
. The modem should respond, "OK".
Type the following command string:
The modem will not respond. This is normal. The modem response mode command
the modem not to respond to instructions. You have now correctly set up the modem for use
at the remote logger station. The individual settings are described below:
Offline commands not echoed
Auto Answer enabled (pick up after first ring)
Serial port rate follows connection rate
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