Vaisala DMP248 Manual de servicio descargar pdf (Pagina 117)

APPENDIX 3 ________________________________________________________________________

VAISALA ________________________________________________________________________ 111

•

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.

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Vaisala DMP248 Manual de servicio Pagina 117