Tech Tip - Modem communication
 
The modem Connected to your PC
 
When communicating via modem with the dataTaker data logger please ensure correct installation within the Windows operating system.  Both DeLogger™ 4 and DeTransfer™ are fully Windows compliant and use the Windows Telephony Applications Programmers Interface (TAPI) to handle the communications requirements of each device attached to the computer.  If the modem has not been installed in accordance with the manufacturers specifications within the Windows operating system then the dataTaker software cannot access the modem.
Please consult the modem user manual for the correct installation procedure.
 
 
The modem connected to a DT500 range data logger
 
Providing SMS capabilities are not required and the modem is being used for dial in access use the MOD-7 cable for connection between the modem and the data logger. This cable simplifies the configuration of the modem dramatically. Simply configure the modem with the following parameters:
 
A)         9600 baud operation e.g ATR9
B)         XonXoff, software handshaking e.g. AT&K4
C)        Auto answer e.g. ATS0=1
D)        Save the configuration as default e.g. AT&W or AT&W0
 
Please consult the modem user manual for the appropriate commands. To configure the modem simply connect the modem to the PC using an appropriate 'straight through' cable and run DeTransfer configured as 9600,N,8,1 generic connection and enter the appropriate commands.
 
 
The modem connected to a DT800 range data logger
 
The DT800 range loggers will automatically configure a modem provided it will 'autobaud' to 57600. Check with the modem user manual because some GSM modems will only autobaud to 19200. If the modem will only autobaud at a lower rate simply connect to the modem using DeLogger and in the Profile set the baud rate to a speed the modem can handle.  Please now do a firm reset to load this change to the data logger’s profile.
The DT800 range logger will now operate correctly.
 
For further information regarding the Mod-7 cable please contact your local distributor.