Vaisala DMP248 - Page 113

APPENDIX 3 ________________________________________________________________________
VAISALA ________________________________________________________________________ 109
• Connect wires to the transmitter's serial connector.
• Check the wiring.
The following procedure must be repeated with all transmitters.
• Open the transmitter cover.
• Pull out the RS 485/422 serial port module, if it is already
mounted.
• Set the serial port of the terminal to 4800 baud, even
parity, seven data bits and one stop bit, full duplex (4800 E 7 1 FDX).
RX GND TX
X17
• The serial settings of the transmitter must also be 4800 E 7
1 FDX and the transmitter must be in STOP mode. If these factory
settings have been changed, they must be changed back. Connect the
RS 232C port of the terminal to connector X17 on the top of the main
board and switch the power on.
• Set the address of the transmitter; it can be any number
between 1 and 99. In this example the address is 22:
>addr 22
Address : 22
• Set the serial bus settings according to your network
specifications. This setting will become valid after next RESET or
power off:
>seri 2400 e 7 1 h
2400 E 7 1 HDX
• Set the transmitter in POLL mode:
>smode poll
Serial mode : POLL
NOTE
The SMODE command must be given last.