Serial Interface/Dip Switches - Pepperl+Fuchs IVI-KHA6-4HRX Manual

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Serial interface/DIP switches

The RS 232 serial interface is connected via the built-in 9-pin sub-D-connector. Alter-
natively, RS 422, RS 485 or 20 mA interfaces can be connected via the terminals.
The interface standard is selected by setting DIP switches S7 and S8.
Standard
RS 232 / RS 485
RS 232 / RS 422
20 mA-current loop
Since the control interface unit incorporates only one serial interface, which operates
with different drivers and receivers for the various standards, only one standard inter-
face may be connected at any one time.
The transmission speed (baud rate) is set with DIP switches S1, S2 and S3 as follows:
Baud-rate
300 Bd
600 Bd
1 200 Bd
2 400 Bd
4 800 Bd
9 600 Bd
19 200 Bd
not defined
Data is transmitted using one start bit, 8 data bits, one stop bit and no parity bit. The
control interface unit also responds to one-and-a-half and two stop bits.
In the basic fixed-code operating mode, the following data formats are possible:
8 data bits, no parity
7 data bits, even parity
7 data bits, odd parity
To set these transmission formats, the command RST (in upper or lower case, but not
in combination) must be sent to the control interface unit immediately after power on.
The control interface unit adjusts automatically to the required format.
In binary mode, the number of data bits to be transmitted is always 8. If 7 data bits are
set, the control interface unit will return the error message "M5" in response to the
command "SB".
Subject to reasonable modifications due to technical advances.
Pepperl+Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 7 79 90 91 • Internet http://www.pepperl-fuchs.com
IDENT-I • IVI-KHA6-4HRX, IVI-KHD2-4HRX
Serial interface/DIP switches
S7 S8
open open
open close
close open
S1 S2
open open
open open
open close
open close
close open
close open
close close
close close
S3
open
close
open
close
open
close
open
close
Copyright Pepperl+Fuchs, Printed in Germany
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