Parity; Data Bits; Line Feed - Siemens SITRANS F Operating Instructions Manual

Section 4

4.7.2 PARITY

Parity is a simple method to check the accuracy of an asynchronous serial data transfer. The parity
setting tells the meter how to format the data words it sends to an external device. Parity is usually an
additional bit added to each data word. For example, if you select [EVEN], the total sum of all the bits in
a single data word (including the parity bit) will always be an even number.
The Parity option list includes all the standard parity settings for asynchronous serial transmission.
The selected parity must match the parity setting of the receiving external device. Some devices ignore
parity entirely; therefore, the option list includes [None]. The factory setting is [None].
To edit the Parity Setting:
To access the [Parity] option list press
Move the cursor to the required parity setting press
To store the data press

4.7.3 DATA BITS

You can specify how many data bits the meter uses to format data words for serial transmisions. The
default setting is [7]. Note that the 996P portable printer requires a word length of [8].
To set the Data Word Length:
To access the [Data Bits] option list press
To move the asterisk to the required bit setting press
ENT
Press to store data. This moves the cursor to [Line Feed].

4.7.4 LINE FEED

Some serial devices (printers, terminals, etc.) insert a line feed automatically after they receive a
carriage return character. When communicating with these device types, you should set Line Feed to
[OFF]. This instructs flow computer to send a carriage return character without adding line feed (cre-
ating an additional blank line after each carriage return).
Setting the Line Feed to [ON] tells the flow computer to insert a line feed character after each carriage
return that it transmits. This may be necessary to avoid the constant "wrapping" of transmitted data
onto a single line. The factory setting is [NO] (line feed disabled). Note that the 996P portable printer
requires [NO].
To enable (or disable) Line Feed:
To access the [Line Feed] option list press
Press
To store the data press
ENT
. This moves the cursor to [Data Bits].
to move the asterisk to [Yes] Line feed enabled, or to [No] Line feed disabled.
ENT
. This moves the cursor to Network ID.
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