Vaisala PTU300 Podręcznik Użytkownika Pobierz pdf (Strona 110)

User's Guide ______________________________________________________________________

108 _________________________________________________________________ M210796EN-A

NOTE

User port on PTU300 main board cannot be used and connected when

RS-485 module is connected. Service port is operating normally.

Networking Commands

Set the RS-422/485 interface by using the following commands. The

other serial line commands are presented in section List of Serial

Commands on page 68.

RS-485 configuration commands SERI; ECHO; SMODE; INTV

and ADDR may be entered by using either the service port or RS-

422/485 port. Also the optional display/keypad can be used, see

section User Port Serial Settings on page 83.

SDELAY

With the sdelay command you can set delay (response time) for user

port (RS232 or RS485), or view currently set delay value. Value

corresponds to tens of milliseconds (eg. 5 = 0.050s minimum answer

delay). The value can be set between 0...254.

Example:

>sdelay

Serial delay : 0 ? 10

>sdelay

Serial delay : 10 ?

SERI

Use the SERI command to input RS-485 bus settings.

SERI [b p d s]

where

= bit rate (300, 600, 1200, 2400, 4800, 9600, 19200, 38400,

57600, 115200)

= parity (n = none, e = even, o = odd)

= data bits (7 or 8)

= stop bits (1 or 2)

1 2 ... 105 106 107 108 109 110 111 112 113 114 115 ... 172 173

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Vaisala PTU300 Podręcznik Użytkownika Strona 110