Gossen MetraWatt SSP 120 Series, Operating Instructions Manual

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!
The buS functions menu appears.
☞
Select the Addr function by pressing the < FUNCTION > key, or
the < FUNCTION > and simultaneously the <

> key or the <

>
key.
!
Addr appears at the left-hand display, and the last selected
parameter appears at the right-hand display.
☞
Select an address for the SSP KONSTANTER with the <

> or
the <

> key.
!
Any address within a range of 0 to 31 may be selected.
!
The selected address must be the same as the address
selected for the SSP KONSTANTER at the computer.
!
Address 0 is usually assigned to the controller.
!
Address 31 means unL (unlist).
☞
Acknowledge your selection with the < ENTER > key.
!
The display is returned to the functions menu after
acknowledging with the <
ENTER > key.
Figure 4.7.4 a Path to Device Address Selection
bAud – Setting Transmission Speed
• 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.
Figure 4.7.4 b Path to Selection of the bAud Text Parameter
Settings
☞
Procedure for selecting bAud and setting the desired parameter
(see chapter 4.7):
!
bAud appears in the buS display along with the related
parameter (transmission speed).
dbit – Selecting the Number of Data Bits
• 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 setting the desired parameter
(see 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
• 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 ( 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
From the buS function group
Select the
device address
FUNCTION Press repeatedly if necessary
CE/LOCAL FUNCTION
ENTER
CE/LOCAL
Select the text parameter
from an options loop
From the buS function group
*
ENTER
CE/LOCAL FUNCTION
From the buS function group
*
ENTER
CE/LOCAL FUNCTION
Select the text parameter
from an options loop
From the buS function group
*
ENTER
CE/LOCAL FUNCTION