User manual

GMC-I Messtechnik GmbH 39
bAud – Setting Transmission Speed (RS 232C)
Specifies transmission speed in bits per second.
The baud rate is an operating parameter of the serial interface.
A low baud rate should be used in the case of large distances
between communicating devices and in EMC-critical
environments.
Settings at the SSP KONSTANTER and the controller must be
identical.
The baud rate can be set to one of the following values:
50, 75, 150, 200, 300, 600, 1200, 1800, 2400, 3600, 4800,
7200, 9600 or 19,200 bits per second.
Settings
Procedure for selecting bAUd, and setting the desired
transmission speed (see chapter 4.7).
! bAUd appears in the bUS display along with the related
parameter (transmission speed).
Figure 4.7.4 b Path to Selection of the bAUd Text Parameter
dbit – Selecting the Number of Data Bits (RS 232C)
Either 7 or 8 data bits can be used.
Settings at the SSP KONSTANTER and the controller must be
identical.
Settings
Procedure for selecting dbit and the desired number of data
bits (see also chapter 4.7).
! dbit appears in the bUS display along with the related
parameter (number of data bits).
Figure 4.7.4 c Path to Selection of the dbit Text Parameter
Pbit – Setting the Parity Bit (RS 232C)
Parity or check bits are used to detect transmission errors.
They are added to the character string so that the sum of H or
L is even or odd as defined.
The parity bit can be set to one of the following values:
none no parity bit
ZEro always 0
EVEn even numbered
odd odd numbered
nonE always 1
! A parity bit should always be used in EMC-critical
environments.
! Settings at the SSP KONSTANTER and the controller must be
identical.
Settings
Procedure for selecting Pbit and setting the parameter (see also
chapter 4.7).
! Pbit appears in the bUS display along with the related
parameter (parity bit).
Figure 4.7.4 d Path to Selection of the Pbit Text Parameter
Select the text parameter
from an options loop
From the bUS function group
*
ENTER
CE/LOCAL
FUNCTION SAVE
RCL
FUNCTION
MENU
SAVE
MENU
RCL
MENU
FUNCTION
MENU
Activate
the setting
Abort
without change
From the bUS function group
*
ENTER
CE/LOCAL
FUNCTION SAVE
RCL
FUNCTION
MENU
SAVE
MENU
RCL
MENU
FUNCTION
MENU
Activate
the setting
Abort
without change
Select the text parameter
from an options loop
From the bUS function group
*
ENTER
CE/LOCAL
FUNCTION SAVE
FUNCTION
MENU
SAVE
MENU
RCL
MENU
FUNCTION
MENU
Activate
the setting
Abort
without change