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Components and Operation
English, Revision 02, Date: 12.07.2011
18
4.3.2
Interfaces
4.3.2.1
RS 232
The serial output may be configured in several ways. The transmission rate is adjust-
able between 9600 and 19200 Baud, the output protocol may be chosen as either
"transparent" or "3964 R" (see also sections B on page 54 and C on page 56). Apart
from that, the content of the telegrams is configurable, as the user may choose from a
list of parameters. Serial commands are used for activating a system monitor.
4.3.2.1.1
List of System Data that may be Output
A telegram of the serial RS 232 output consists of max. 13 bytes. The minimum update
rate at 9.6 KB is then calculated as follows:
Figure 12
Formula: Minimum update rate
As the transmission is binary, it is possible — when using the 3964R procedure — to add
further (DLE) characters by this procedure.
All multiple byte variables are output either with the highest byte or the lowest byte first
(adjustable)! The 8 bit check sum is only output when using the transparent protocol.
It then includes the start character. The start character, as well as the check sum
(transparent protocol) cannot be removed from the data block.
The protocol is adjustable, irrespective of whether telegrams are put out permanently
by an adjustable update rate or whether one transponder is located within the field.
POS
green
represents the positioning output
ERR
red
is lit when the error bits DEC_HW_ERR, PARAM_ERROR
or ANTENNA_ERR are set or when the reference tran-
sponder test was unsuccessful
(see also Table 7 on page 19)
additional CANopen
®
-Function:
- lit: permanent CAN bus error (bus offline)
- blinks slowly: CANopen
®
state preoperational
- blinks quick: CANopen
®
state stop
LED
Colour
Function
Table 5
Control LED
13
Byte
Telegramm
------------------------------
11
Bit
Byte
------------
9600
Bit
s
-------
14 9
ms
Telegramm
------------------------------
=
.