Vaisala PTU200 Series Guia do Utilizador descarregar pdf (Página 47)

CHAPTER 7____________________________________________SELF-TESTING AND PROBLEM HANDLING

VAISALA _________________________________________________________________________ 43

CHAPTER 7 SELF-TESTING AND

PROBLEM HANDLING

Returning the serial communication

parameters

To restore factory software and hardware settings, set the dip switch

S1 on the CPU board as in FIGURE 7-1. Other switches except the SW8

must be OFF. In addition, the serial interface has to be set for basic RS

232C operation according to FIGURE 7-1. With these selections, one

single transmitter can be operated through the RS 232C serial

interface using factory serial bus settings as in TABLE 7-1. Returning

the SW8 to OFF will restore the original, application specific software

settings.

OFF

SW1

SW2

SW3

SW4

SW5

SW6

SW7

SW8

TXD

RXD

X15

RX/RXD

TXD

FIGURE 7-1 Factory settings for the dip switch S1 and Basic RS

232C settings

TABLE 7-1 Serial interface factory settings

Baud rate 9600

Parity even

Data bits 7

Stop bits 1

Duplex full duplex

1 2 ... 42 43 44 45 46 47 48 49 50 51 52 ... 63 64

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Vaisala PTU200 Series Guia do Utilizador Página 47