User`s manual

5-8 Series 90™-30 CPU with Embedded PROFIBUS Interface – November 2004 GFK-2334A
5
Device Status 2 – Word 3
Bit Name Description
0 Prm_Req Slave must be parameterized.
1 Stat_Diag This bit remains active until all diagnostic data has been
retrieved from the slave.
2 1 Always a value of one.
3 WD_On Slave watchdog is activated.
4 Freeze_Mode Freeze command active.
5 Sync_Mode Sync command active
6 Reserved Reserved.
7 Deactivated Slave not active.
8 … 15 RFU Reserved for further use
Device Status 3 – Word 4
The Device Status 3 word has only one active meaning. If this word is set to 0x0080 then
the slave has an Extended Diagnostic data overflow. This means that the slave has a
large amount of diagnostic data and cannot send it all.