00194932-20 User Manual CAN Test Box-Error Frame Diagnostic unit_en.pdf - 第22页

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Edition 10/2018 SIPLACE CAN Bus

Fig. 2.7 - 1 CAN telegram with error frame

The Error Frame Counter switches, since one block of the CAN telegram (6 bits in this case) has

maintained the same state for approx.6µs. For a 1MBit bus, 1 bit has a length of 1µs, resulting in

a max. block length at the same level of 5µs.

The CAN Test Box Error Frame Counter is preset and counts 1 Mbit CAN bus at 5.5µs. 500KBaud

CAN bus HS60 is counted at 11µs.

These settings of 5.5µs and 11µs are factory set in the CAN Test Box with the help of a potenti-

ometer.

5.9µs

CAN _H level

CAN _L level

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SIPLACE CAN Bus Edition 10/2018

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Edition 10/2018 SIPLACE CAN Bus

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