Vaisala PTU300 Betriebsanweisung PDF herunterladen (Seite 66)

User's Guide ______________________________________________________________________

64 __________________________________________________________________ M210796EN-A

Serial Line Communication

Connect the serial interface by using either the user port or the service

port.

For permanent interfacing to host system, use the user port. You can

change the serial settings and operate in RUN, STOP, POLL and

SEND modes.

For temporary RS-232 connections use the service port. Service port

is always available with fixed serial settings.

0507-026

Figure 35 Service Port Connector and User Port Terminal on

Mother Board

Numbers refer to Figure 35 above:

1 = Service port connector

2 = User port terminals

User Port Connection

Use suitable serial cable between the user port RxD, GND and TxD

screw terminals and the PC serial port, see Figure 36 on page 65.

Table 12 Default Serial Communication Settings for the User

Port

Parameter Value

Bits per second 4800

Parity Even

Data bits 7

Stop bits 1

Flow control None

1 2 ... 61 62 63 64 65 66 67 68 69 70 71 ... 172 173

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Vaisala PTU300 Betriebsanweisung Seite 66