Structure

The module is equipped with 32 HART channels for HART communications with transmitters or

actuators. The HART channels are electrically isolated from one another and from the voltage

supply. Analog input or output modules are connected in parallel with the HART module via the

corresponding connector board, see Chapter 5.4.2 and Chapter 5.4.4.

The transmitter supply as well as the open-circuit and short-circuit monitoring functions for the

analog input and output modules are not affected by the HART module connected in parallel.

HART operation influences the analog measurement accuracy by approx. 1 %.

The safety-related 1oo2 processor system for the I/O module controls and monitors the I/O

level. The data and states of the I/O module are made available to the processor modules via

the redundant system bus. The system bus has a redundant structure for reasons of availability.

Redundancy is only ensured if both system bus modules are inserted in the base plates and

configured in SILworX.