2
Function
14
Festo – CPX-E-PB-EN – 2017-07 – English
2.5.3
Standard diagnostic information
The following diagnostic information can be requested from the DP master using function Slave_Diag of system
CPX-E
è
Bit
Meaning
Explanation
0
Diag.Station_Non_E xistent
1 = system CPX-E can no longer/not yet be addressed.
Possible causes:
–
Operating voltage not applied
–
Data transmission line interruped or disturbed
1
Diag.Station_Not_Ready
1 = system CPX-E not yet ready for data exchange.
2
Diag.Cfg_Fault
1 = Configuration data obtained from the master does not agree with
the configuration data from system CPX-E.
3
Diag.Ext_Diag
1 = Diagnostic message exists.
Possible causes:
–
Cable fracture on input/output module
–
Short circuit/overload of electrical outputs, etc.
4
Diag.Not_Suppor ted
1 = System CPX-E does not support the requested function
5
Diag.Invalid_Slave_Response
Always 0 (permanently set by system CPX-E)
6
Diag.Prm_Fault
1 = Last parameterisation telegram incorrect
7
Diag.Master_Lock
Always 0 (permanently set by system CPX-E)
1) Bits that refer to system CPX-E are bolded.
Tab. 2.12
Station status 2
Bit
Meaning
Explanation
0
Diag.Prm_Req
1 = Master must reconfigure system CPX-E
1
Diag.Stat_Diag
1 = Master must request diagnostic data until this bit is set to 0
2
–
Always 1 (permanently set by system CPX-E)
3
Diag.WD_On
1 = Response monitoring (watchdog) activated
4
Diag.Freeze_Mode
1 = Freeze activated
5
Diag.Sync_Mode
1 = Sync activated
6
Reserved
–
7
Diag.Deactivated
Always 0 (permanently set by system CPX-E)
1) Bits that refer to system CPX-E are bolded.
Tab. 2.13
Station status 3
Bit
Meaning
Explanation
0 … 6
Reserved
–
7
Diag.Ext_Diag_Overflow
1 = system CPX-E has more diagnostic messages than can be buffered
or master contains more diagnostic messages than it can buffer.
Tab. 2.14