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PROFIBUS Power Hub Segment Coupler 3 (SK3)
Operation
■
PA Bus Configu Diag.
:
• Watchdog time
• PA retry limits
• Number of activated PA segments
• Diagnostics (ADM alarm observer)
If the PA bus configuration module is set, values that are set with this module cannot be
changed with acyclic access during cyclic communication.
Diagnostics (Slave Diagnostics)
The BIS returns the following of the diagnostic blocks described in the GSD file:
■
Device diagnostics
■
0
…
4 x segment diagnostics (channel diagnostics)
■
RedState data block
Device diagnostics provides specific diagnostic information on the gateway. This information is
parsed directly by the process control system and displayed for the user. In redundant
configuration, all diagnostic information is also available for the redundancy partner. Device
diagnostics includes:
All device diagnostic parameters marked with "Yes" in the EXT_DIAG column cause the
EXT_DIAG to be set in the slave diagnostics. The process control system then marks that slave
as defective. Channel diagnostics returns specific diagnostic information on each individual
segment. These error messages are prioritized and set to preferred by the BIS depending on
their ranking. The following table represents diagnostic information according to its ranking.
Device Diagnostic Parameters
EXT_DIAG
InputData
Gateway primary device
No
GOOD
Redundancy not operative
Yes
BAD
Redundancy is synchronizing
Yes
BAD
Redundancy gateway missing
Yes
BAD
Hardware error detected
Yes
BAD
Redundancy link error
Yes
BAD
No baud rate detected
Yes
BAD
Built-in slave not in data exchange
No
GOOD
Firmware version mismatch
Yes
BAD
Firmware updated, need reboot
Yes
BAD
A PA master not in token ring
Yes
BAD
PA bus parameters write locked
No
GOOD
Segment MAU error
Yes
BAD
ADM error or module missing
Yes
BAD
ADM system maintenance required
Yes
GOOD Maintenance
required
ADM system out of specification
Yes
BAD
ADM segment maintenance required
Yes
GOOD Maintenance
required
ADM segment out of specification
Yes
BAD
