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2 configuration bit timing parameters – ElmoMC CANopen DSP 305 Implementation Guide User Manual

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3.3.2 Configuration Bit Timing Parameters

The LSS Master’s Configure Bit Timing Parameters service sets new bit timing on an
LSS Slave. The bit timing parameters for different baud rates are specified in the Bit
Timing Parameter Table below. With table_selector value ´0´ the standard CiA bit
timing parameter table is used. The table_index selects the entry (baud rate) in the
selected table (value ‘0’ refers to the highest baud rate).

Table Selector Table:

Standard CiA Bit Timing Table:

Table Selection

0: standard CiA Bit Timing Table

1…127:

reserved

for further use by CiA

128…255: for use by manufacturer for

specific but timings

Note:

Elmo drives only work with the
standards CiA Bit Timing Table.

Table Index

0

1

2

3

4

5

6

7

8

Baud Rate

1000 kBit

800 kBit

500 kBit

250 kBit

125 kBit

reserved

50 kBit

not supported

not supported

This service can be performed on only one LSS Slave, in configuration mode, at a time.
The service must be followed by an Activate Bit Timing Parameters service. After
executing this service the node may not execute any remote LSS services other than
Configure Bit Timing Parameters, Activate Bit Timing Parameters and Switch Mode.

19

##

reserved by CiA for future use

0

1

2

3

4

5

6

7

8

COB-ID = 7E5h

CS

Table

Selector

##

Table

Index

Figure 3-10 Select Bit Timing

A remote message confirms the success or failure of the service. In case of a failure, the
reason is given.

19

##

reserved by CiA for future use

0

1

2

3

4

5

6

7

8

COB-ID = 7E4h

CS

Error

Code

##

Specific

Error

Figure 3-11 Bit Timing Confirmation Message

Error Codes:

0: protocol successfully completed

1: Node-ID out of range

2...254: reserved for further use by CiA

255: implementation specific error occured.

Specific Error Codes:
If error_code is 0 … 254, then a specific_error_code will be 0.
If error_code is 255, then a specific_error_code will be:

2:

incorrect

mode

CANopen DSP 305 Implementation Guide

MAN-CAN305IG (Ver. 1.1)

3-5