API
functions
3
23
3.5
Status description of the backplane bus (state machine)
The switch-on procedure in the backplane bus is effected in several steps.
Status
Transition
Description
1.
Init
Initialisation of the peripherals, automatic transition to
the PreOperational state, and setting a status bit.
No PDO & SDO communication
2.
PreOperational
SDO communication possible
- Reception of configuration data for the individual
terminals
- Waiting for the "Start“ telegram, or repeated "Config“
L-force Controller -> BPB controller
- Transmission of the terminal data to the IPC
3. Operational
SDO & PDO communication possible
3.6
Error codes
The programming interface returns the following possible error codes. Errors are
returned as a bit mask, i.e. several error codes can be linked with each other in each
case.
Error list for the status register
(Error byte in the status register)
Error number
Category
Source
Description
Dec Hex
0
0
-
-
No error; ok
11 B Warning
BPB
controller
Synchronisation: DPRAM lock register
12
C
Warning
BPB controller Result FIFO full
31 1F Warning BPB
driver
Synchronisation: DPRAM lock register
32
20
Warning
BPB driver
Timeout: Reset
33
21
Warning
BPB driver
Timeout: ErrorReset
96
60
Error
BPB controller Error during creation of group 1
97 61 Error BPB
controller Error during creation of group 2
98
62
Error
BPB controller Error during creation of group 3
99
63
Error
BPB controller Groups ok, but cycle time not sufficient
100
64
Error
BPB controller Error during processing the master queues