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User's Guide _______________________________________________________________________
Serial Line and Analog Communication Options
32 ___________________________________________________________________ M210474EN-D
MMT310 measurement data can be accessed with the following serial or
analog options:
- RS-232 serial port connection to a computer
- Analog output (current or voltage)
For temporary access, you can also connect to the transmitter with the
following:
- USB connection to a computer using an optional USB cable (238607)
- Connection to a hand-held MI70 indicator using an optional MI70
calibration cable (DRW216050SP)
When using the MMT310 with a serial connection (RS-232 serial cable
or USB), you need a terminal program to operate the MMT310 command
line interface. For instructions on installing and using the PuTTY
terminal application for Windows (available from
http://www.vaisala.com/software), see section Terminal Program
Settings on page 35.
For information on using the analog outputs, see section Setting, Scaling
and Testing the Analog Outputs on page 44.
RS-232 Serial Port Connection
When connecting the MMT310 to a computer with an RS-232 cable, use
the following data format settings (factory settings) in the terminal
program:
- 1 start bit
- 7 data bits
- 1 stop bit
- Even parity
- 4800 bits per second, programmable to 19200
- Full duplex
- Serial asynchronous
- Configured as Data Terminal Equipment (DTE)
Enter the communication parameters when using this terminal session for
the first time and save them for future use.
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