Siemens 6DR55 Series Manual page 156

Functions/operation via PROFIBUS PA
Configuration warning
Configuration changed
Process value error
Process value uncertain
Process value out of tolerance
Normal operation
Table 11 Icon definitions
Diagnosis events
and status /
DIAGNOSIS
DIAGNOSIS bit
--
DIA_MAINTENANCE_REQUIRED
DIA_MAINTENANCE_ALARM
DIA_MAINTENANCE_DEMANDED Failure
DIA_INV_PRO_COND
DIA_FUNCTION_CHECK
Table 12 Usable DIAGNOSIS bits
Quality status
Good, ok
Good, maintenance requirement
Good, maintenance demand
Uncertain, maintenance demand
Bad, failure
Uncertain, process related, no maintenance
Bad, process related, no maintenance
Bad, function check or local override
Good, function check or local override
Table 13 Usable quality status
154
As shown in Figure 66, each diagnosis event can influence both the
variable's status and the bits in the DIAGNOSIS byte. If the parameter
COND_STATUS_DIAG is activated, the parameter
DIAG_EVENT_SWITCH defines the relationship between diagnosis
events and the values for status and the DIAGNOSIS byte. Table 14
shows the default relationships. The Tables 12 und 13 show the confi-
guration which is available for the diagnosis byte DIAGNOSIS and the
quality status.
Meaning
No bit is set
Check request
Immediate check request
Invalid process condition
Function check or local operation
MEANING
O.K.
Maintenance demand
Immediate maintenance request
Immediate maintenance request
Failure
Invalid process condition
Invalid process condition
Function check
Function check
lowest
Group
--
M
M
M
P
F
Group
--
M
M
M
M
P
P
F
F
SIPART PS2 PA Manual
A5E00127926--05