USER'S GUIDE  ____________________________________________________________________ 
66  ___________________________________________________________________ M211187EN-C 
data message, message frames, and polling format are 
the same as they are in Vaisala MITRAS 
SET MESSAGE TYPE MITRAS_DB 
Selects the MITRAS Double Base emulation mode. The 
data message, message frames, and polling format are 
the same as they are in Vaisala MITRAS 
SET MESSAGE TYPE FD12MSG2 
Selects the FD12 message 2 emulation mode. The data 
message, message frames, and polling format are the 
same as they are in Vaisala FD12 Visibility Meter. 
SET MESSAGE TYPE FD12MSG7 
Selects the FD12 message 7 emulation mode. The data 
message, message frames, and polling format are the 
same as they are in Vaisala FD12P Weather Sensor. 
SET MESSAGE INTERVAL number 
Sets the interval in seconds for message sending. Zero 
disables the automatic sending. 
Message is directed to the Data port (default). 
SET MESSAGE PORT MAINTENANCE 
Message is directed to the Maintenance port. 
SET MESSAGE PORT MODULE 
(DMX501 only) 
Message is directed to the optional communication 
module, for example, modem module. 
Sets unit identifier: An alphanumerical string is 
accepted. Depending on the configured message type, 
the first character(s) are used for message and polling 
identification. A '-' character removes the ID. By default 
no ID is set and one space character is used in the 
Sets name, an alphanumerical string that can be used 
during installation to identify, for example, unit location. 
The string must not include spaces. 
SET DATA_PORT BAUD number yes/no 
Sets data port serial line baud rate to 300 ... 19200. 
Verification yes/no asked only if the command is given 
by DATA PORT (default 9600). 
SET DATA_PORT MODE RS-232 
NO_FLOW_CNTR yes/no 
Uses the RS-232 serial line where no flow control is 
used. Verification yes/no asked only if the command is 
given by DATA PORT (default). 
SET DATA_PORT MODE RS-232 
HW_FLOW_CNTR yes/no 
Uses the RS-232 serial line, where the control signals 
RTS and CTS lines are in use. In this mode, RTS 
indicates 'Ready for Receiving' and can be used for 
data flow control. Verification yes/no asked only if the 
command is given by DATA PORT. 
SET DATA_PORT MODE RS-232 
HW_TRANSMIT_CNTR yes/no 
Uses the RS-232 serial line, where the control signals 
RTS and CTS are in use. In this mode, RTS indicates 
'Request to Send' and can be used for modem carrier 
control. Verification yes/no asked only if the command 
SET DATA_PORT MODE RS-485 yes/no 
Uses the RS-485 serial line. Verification yes/no asked 
only if the command is given by DATA PORT. 
SET DATA_PORT PARITY 7E1 yes/no 
RS-232 and RS-485 serial lines use the following 
communication parameters: 7 data bits, even parity, 1 
stop bit. Verification yes/no asked only if the command 
is given by DATA PORT (default). 
SET DATA_PORT PARITY 8N1 yes/no 
RS-232 and RS-485 serial lines use the following 
communication parameters: 8 data bits, no parity, 1 
stop bit. Verification yes/no asked only if the command 
SET MODULE MODEM V21 ANSWER 
yes/no (DMX501 only) 
300 bps modem mode, ANSWER mode. Verification 
yes/no asked only if the command is given by DATA