IMC CANSAS - Page 393

SENT: Gateway from SENT to the CAN-Bus 393
imc CANSAS Users Manual - Doc. Version 1.9 - 05.12.2014© 2014 imc Meßsysteme GmbH
Revision
APR2007
FEB2008
JAN201
The various revisions of the standard SAE J2716. This entry is important because, for instance, the
calculation of the CRC may differ between the individual revisions. The particular revision will be
selected according to which the SENT-sensor is specified.
Clock tick length
Number of data nibbles
The sensor transmits this many data nibbles (1..6). Here, only the data nibbles are counted. In total,
the sensor always transmits 2 more nibbles.
Pause pulse option
No pause pulse: no pause pulse is included in the transmission.
Pause pulse: a pause pulse (an additional stuffing pulse after the CRC nibble) is included in the
transmission.
Pause pulse with constant frame length: a pause pulse is included in the transmission. This causes the
entire transmission duration to have a fixed length. The subsequent parameter “Pause pulse frame
length” specifies the exact value.
Pause pulse frame length
Frame length, expressed in clock ticks. For 6 data nibbles, the number is in the range 282…922. This
parameter is only available if the Pause pulse option is set to the value “Pause pulse with constant
frame length”.
Reduction
1…1000. The frequency of CAN-messages with FAST channels is reduced by this factor. It is generally
set to 1, so that one corresponding CAN-message is sent for each SENT-message. But for cases where
the traffic on the CAN-bus is too high or if a lower transfer frequency is desirable for some reason, a
value > 1 can be selected. E.g. for a value of 10, only every 10
th
SENT-message is converted to a CAN-
message. Nevertheless, all SENT-messages are always evaluated, for instance in order to extract the
SLOW channels.
Interference-free signal tapping
Off, On: see the description of operating modes above .
Attention! Making the wrong selection can lead to damage to the connected devices!
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