FD67 Profibus-DP Manual
46
Byte 1
7 6 5 4 3 2 1 0
Diag.Prm_req
If the DP slave sets this bit, it must be re-parameterized and re-configured. The bit remains
set until a parameterization is finished.
Diag.Stat_diag
If the DP slave sets this bit, the DP master must get diagnostic data until this bit is deleted.
The DP slave sets this bit when it cannot provide valid user data, for instance.
Set to 1
Diag.WD_ON
If this bit is set to 1, response monitoring is activated.
Diag.freeze_mode
This bit is set by the DP slave as soon as it receives the Freeze command.
Sync_mode
This bit is set by the DP slave as soon as it receives the
Sync
command.
Diag.Not_Present
This bit is set by the DP master for the DP slaves not contained in the master parameter
block. The DP slave sets this bit to zero.
Diag.deactivated
This bit is set by the DP master as soon as the DP slave is removed from the master
parameter block of the DP master. The DP slave always sets this bit to zero.
Byte 2
7 6 5 4 3 2 1 0
Reserved
Diag.ext_overflow
If this bit is set, there is more diagnostic information available than is specified in
Ext_Diag_Data. For example, the DP slave sets this bit when there is more channel
diagnostic information available than the DP slave can enter into its send buffer. The DP
master sets this bit when the DP slave sends more diagnostic information than the DP
master can take into account in its diagnostic buffer.
Byte 3
7 6 5 4 3 2 1 0
Diag.master_add
The address of the DP master which has parameterized the DP slave is entered into this
byte. If the DP slave is not parameterized by a DP master, the DP slave sets the address
FF
hex
in this byte.
Byte 4
7 6 5 4 3 2 1 0
ID number of highbyte (here : 06
hex
)
Byte 5
7 6 5 4 3 2 1 0
ID number of lowbyte (here : 4D
hex
)