ABB CI854A-EA 3BSE030221R2 Analog module industrial system controller

Description

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The data communication between the DPM1 and the slaves is divided into three
phases: parameterization, configuration and data transfer. Before the master
includes a DP slave in the data transfer phase, a check is run during the
parameterization and configuration phase to ensure that the configured setpoint
configuration matches the actual device configuration. During this check, the device
type, format and length information and the number of inputs and outputs must also
correspond. This provides you with reliable protection against parameterization
errors.
Diagnostics
In addition to the cyclic data the PROFIBUS slave unit provides diagnostic data.
With this diagnostic data the slave can indicate errors or warnings on the slave unit,
the I/O-units or the I/O-channels. Some diagnostic data is generic and defined by the
PNO. But most of the diagnostic data is manufacturer specific.
The following errors/warnings are examples for PROFIBUS diagnostics:
Channel related:
– Wire break
– Short circuit
Module related:
– Wrong module type
– Module missing
Slave related:
– Power supply 2 error
– Internal bus error
The CI854/CI854A supports the operation of PROFIBUS DP-V0 diagnostics. The
diagnostic data transferred from the slave to the master is mapped by the
CI854/CI854A to the unit status of the PROFIBUS slave unit or the related I/O-unit
and is indicated as error or warning in the UnitStatus in Control Builder M for the
specific unit.
Only that diagnostic data configured within the hardware definition file is operated
by the system. The configuration includes
– Selection of diagnostic to be operated by the system.
– Mapping of the diagnostic information within the diagnostic frame on
PROFIBUS to the specific HW unit (slave or I/O unit)