BECKHOFF BK3000 - Manual (Page 50)

Appendix
50 BK3xxx/LC3100
Old format
If the old diagnostic format is set in the User_Prm_Data (byte 2, bit 3 = 0),
the diagnostic data has the following form (is supported by all BK3xx0
devices and the LC3100):
Byte no.; bit no. Description
Byte 0 Bit 0: slave does not answer (is set internally by the DP master)
Bit 1: slave is starting up (parameterisation and configuration are being evaluated)
Bit 2: configuration error
Bit 3: Ext_Diag_Data available (from byte 6)
Bit 4: function not supported
Bit 5: incorrect answer from slave (is set internally by the DP master)
Bit 6: parameterisation error
Bit 7: slave is exchanging data with another master (is set internally by the DP master)
Byte 1 Bit 0: slave must be parameterised again
Bit 1: slave has static diagnostics
Bit 2: 1
Bit 3: DP watchdog is active
Bit 4: slave is in freeze mode
Bit 5: slave is in sync mode
Bit 6: reserved
Bit 7: slave is deactivated (is set internally by the DP master)
Byte 2 Bit 0-6: reserved
Bit 7: too much Ext_Diag_Data
Byte 3 Station address of the master with which data is being exchanged
Byte 4,5 Ident number
Manufacturer-specific diagnostics
Byte 6 Length of the Ext_Diag_Data, including length byte
Byte 7 0 (reserved for extensions)
Byte 8 – x: 8 bytes per diagnostic message (x: 9,17,25,33,41,49,57)
Diagnostic messages from
the terminals
There is a diagnostic message for each terminal, which is laid out as
follows:
Byte no. Description
Byte 0 Terminal no. (1-64)
Byte 1 Channel no. (1-4)
Byte 2 reserved for expansions
Byte 3 reserved for expansions
Byte 4 reserved for expansions
Byte 5 Analogue terminals: Status byte of terminal
Digital terminals: bit 1: short circuit channel 0
short circuit channel 1
Byte 6 reserved for expansions
Byte 7 reserved for expansions
Diagnostic messages from
the bus coupler
In addition to the diagnostic messages from the terminals, there are also
two diagnostic messages from the bus coupler.
Byte no. Description
Byte 0 0
Byte 1 0
Byte 2 Initialization error
Byte 3 Terminal bus error
Byte 4 Test of bus reset revealed errors
Byte 5 Incorrect terminal number on bus reset
Byte 6 Number of first terminal which is not supported
Byte 7 0