4 Commissioning
4.12 Acyclic data
DX-NET-PROFINET2-2
01/22 MN040062EN
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95
4.12.5 Errors and diagnostics
The variable frequency drive/variable speed starter provides diagnostic mes-
sages for itself and for the DX-NET-PROFINET2-2 communication interface.
Basically, a distinction must be drawn between:
•
basic diagnostics (PROFINET basic diagnostics),
•
advanced diagnostics (advanced device diagnostics) and
•
PROFIdrive parameter channel diagnostics
PROFIdrive parameter channel diagnostics are shown with error messages
or warnings, as applicable, in the cyclic profile.
4.12.5.1 Basic diagnostics
A pending diagnostic alarm from the variable frequency drive/variable speed
starter will be signaled as a collective diagnostic in the cyclic profile with
input word 0, bit 4 (DIAG). A device response, if any, will be described in the
advanced diagnostics.
In addition, in all profiles, the bits ERR (the variable frequency drive stops) or
WARN (no response by the variable frequency drive) of the corresponding
input bytes indicate whether diagnostic messages (i.e. errors or warnings)
are present.
Error acknowledgment
“Transparent Mode” profile
Reset bit 2 (control word 1) error
After the cause of the fault is fixed, you can acknowledge a fault (ERR) as
follows:
“PDShort” and “PROFIdrive” profiles
FaultAck (control word 1) = 1,
Basic unit digital input 1 = new edge
Warnings (WARN) cannot be acknowledged, since they are simply messages
without an ensuing response from the variable frequency drive/variable
speed starter.
The diagnostic data that corresponds to the PROFIdrive profile can be sent at
any time regardless of the profile chosen. It is provided via the acyclic servi-
ces of the relevant bus system.
For available FaultBuffer diagnostic messages: PNU 947 subindex 0 to 7
