S p e z i a l e l e k t r o n i k G m b H
iseg
c/o ROTECH
Email: sales@iseg-hv.de
Phone ++ 49 351 / 26 95 - 260
Spezialelektronik
Bautzner Landstr. 45
http://www.iseg-hv.com
Fax
++ 49 351 / 26 95 - 261
GmbH
D - 01454 Rossendorf
Germany
19
Group access: Bit rate
(Read-write/Write access)
Read-write
Byte
DATA_ID
Controller (DLC = 1):
Bit
7
6
5
4
3
2
1
0
Read actual bit rate
Designation
DATA
_DIR
Data
1
1
1
0
1
1
1
0
0
Description
read
⇓
Response module (DLC = 3)
Byte
DATA_ID
DATA_1
DATA_0
Bit
7
6
5
4
3
2
1
0
7
...
0
7
0
Designation
DATA
_DIR
Data
0
1
1
0
1
1
1
0
0
...
x8 x7
...
x0
Description
write
x8 ... x0: actual bit rate [kbit/s]
Write
(Controller [DLC = 3]: Write a new bit rate)
Byte
DATA_ID
DATA_1
DATA_0
Bit
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Designation
DATA
_DIR
LSB
Data
0
1
1
0
1
1
1
0
0
x8 x7 x6 x5 x4 x3 x2 x1 x0
Description
write
x8 ... x0: - 7 Bit rates are possible:
1)
20 kbit/s
2)
50 kbit/s
3)
100 kbit/s
4)
125 kbit/s
5)
250 kbit/s
6)
(500 kbit/s on request)
7)
(1000 kbit/s on request)
- the new bit rate gets active after RESET
respectively POWER OFF/ON
and
- it has to be sure that the bit rate of all modules
in the system must be the same before a
RESET or POWER/ON is made.
- bit rate is prefixed from factory signed on a
sticker of the 96 pin connector.
- invalid bit rates will be ignored from the module
and the bit ‘Input error’ of the ‘Status channel 0’
will be set.
