Beckhoff BC8050, Documentation

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Error handling and diagnosis
BC8050 und BC8150 79 Version: 3.0.0
7 Error handling and diagnosis
7.1 Diagnostics
State of the K-bus
An internal bus or Bus Terminal error is indicated in the K-Bus state. A more precise fault description can be
obtained via a function block (in preparation). To this end, link the "K-Bus state" variable with your PLC
program.
Fig. 61: State of the K-bus
Error bit Description Error type
0 No error No ERROR.
Bit 0 K-bus error ERROR
Bit 2 K-Bus is re-triggered NOTE
Reading K-bus state by ADS
In default or TwinCAT configuration the fieldbus state can be read via ADSREAD.
Parameter ADSREAD function block Description
NetID local – empty string
Port 1
IndexGroup 16#0006
IndexOffset 16#000C_9000
LEN 1