Beckhoff BC3150 Manual do Utilizador descarregar pdf (Página 94)

Safety Instructions

92 Fieldbus Components

7. Error handling and diagnosis

Diagnostics

PROFIBUS state

In many cases it is important to know whether the communication with the higher-level master is still OK. To this end,

link the DpState variable with your PLC program.

Fig. PROFIBUS diagnostics byte in the System Manager

Error number Description Remedy

0 No error -

129 Waiting for configuration data Start PROFIBUS

130 Waiting for parameter data Start PROFIBUS

131 No master available Check PROFIBUS cables and connectors

Example

If the PROFIBUS is interrupted, e.g. because the cable was pulled or the PLC was switched off, the BX3100/BC3150

reports this as 130 in the DP state. This means the BX3100/BC3150 is waiting for parameter data from the master.

Slave boot sequence after a timeout or starting of the master:

parameter data - configuration data - data exchange

Read the fieldbus state via ADS

In the default configuration and TwinCAT configuration you can read the field bus state about ADSREAD.

Parameter ADSREAD function block description

NetID local - empty string

Port 1

IndexGroup 16#0006

IndexOffset BX3100: 16#000C_A0F4

BC3150: 16#000C_A080

LEN 1

1 2 ... 89 90 91 92 93 94 95 96 97 98 99 ... 111 112

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Beckhoff BC3150 Manual do Utilizador Página 94