Operating instructions

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Reading parameters:
Client Î Server
SDO Upload (expedited)
0 1 2 3 4 5 6 7
Ctrl. byte Parameter number Data set Data
0x40 LSB MSB 0xnn 0
Server Î Client Upload Response Î Reading process free of errors
0 1 2 3 4 5 6 7
Ctrl. byte Parameter number Data set Data
0x42 LSB MSB 0xnn LSB MSB
uint/int LSB MSB 0x00 0x00
long LSB ... ... MSB
Server Î Client Abort SDO Transfer Î Reading process faulty
0 1 2 3 4 5 6 7
Ctrl. byte Parameter number Data set Data
0x80 LSB MSB 0xnn Code 0 0 0
The error code is stated in byte 4 in a faulty reading process (see Table, failure
codes).
failure codes
Code Description
1 inadmissible parameter figure
2 inadmissible data set
3 parameter not readable
4 parameter not writable
5 reading error EEPROM
6 writing error EEPROM
7 checksum error EEPROM
8 parameter cannot be written during running drive
9 values of the data sets differ
10 parameter of wrong type
11 unknown parameter
12 BCC error in VECTRON bus protocol
15 unknown error
20 system bus node not available only in access via field bus
connection
21 string parameter not admissible only in access via VEC-
TRON bus protocol
Errors marked in the table are generated by the field bus side, not in the Abort SDO
Transfer of the system bus.