Diagnostics

Information between SBus^PLUS master and connected slaves is exchanged by means of Ethernet frames. The master sends the frames, which cyclically pass the individual slaves. The frame returns to the master during the same cycle due to the ring structure. The data are then processed cyclically and evaluated by the master.

EtherCAT^® offers a great number of diagnostics options. These can be divided as follows:

• Information at hardware level
• Information at software level
• Diagnostics through the slave
• Diagnostics through the master

The next chapters describe the most important diagnostics options.

• Integrating the library
• Connector status
• Master diagnostics
• Slave diagnostics
• LED Diagnostics
• Substitute value configuration, master
• Substitute value configuration, slave
• Resetting error counters
• Using diagnostics information in the IEC Editor
• Recommended procedure for diagnostics
• Notes on synchronization and creation of substitute values
• Recommendation for installing the Ethernet cabling