22 / 50
ctrlX CORE
Interface description
Bosch Rexroth AG
R911405645, Edition 05
Process data of the bus coupler
The bus coupler has data that is inserted into the cyclic process image. This data length is 5 words
in total. According to the Ethercat standard, this data before the input process data is shown in the
process image.
The process data words 0...3 contain the voltage and current values of U
P
and U
L
(only the current
consumption of the infeed terminal and the I/O modules) as well as their bits for the supply voltage
diagnostics of the bus coupler. This information can also be retrieved via acyclic services using CoE.
These are shown as the indices 6000, 6010 and 6020 hex.
Word 0
U
P
Voltage
Word 1
U
P
Current
Word 2
U
L
Voltage
Word 3
U
L
Current
(Only the current consumption of the infeed terminal (typ. 50 mA) and the
I/O modules (3 A max.) is measured. In addition to the transferred measured
value (typ. 350 mA), the ctrlX CORE and the multi-Ethernet unit consume
more than shown here.
Word 4
0
1
2
3
4
5
6-15
U
P
Undervoltage
U
P
Overvoltage
U
P
Overcurrent
U
L
Undervoltage
U
L
Overvoltage
U
L
Overcurrent
Reserved
Diagnostic strategy
Mechanisms
Different mechanisms are used for the diagnostics of the bus coupler.
Mechanism
Diagnostics
Ethercat state machine
Ethercat hardware watchdog
Ethercat system diagnostics
Diagnostic objects in the CoE object directory
10F1
Extended diagnostics, e.g. periphery errors
Error settings
Diagnosis history object
10F3
20 diagnostic messages can be stored
Diagnosis history
For the status codes of the "Ethercat state machine" and the diagnostic codes across all
modules, refer to .