DeviceNet Master Protocol API

DeviceNet-Master Dual-Port Memory • 39
Watchdog Timeout (All Implementations)
This field holds the configured watchdog timeout value in milliseconds. The application may set its
watchdog trigger interval accordingly. If the application fails to copy the value from the host watchdog
location to the device watchdog location, the protocol stack will interrupt all network connections
immediately regardless of their current state. For details, see section 4.13 of the netX DPM Interface
Manual.
Host Watchdog (All Implementations)
The protocol stack supervises the host system using the watchdog function. If the application fails to
copy the value from the device watchdog location (section 3.2.5 of the netX DPM Interface Manual) to
the host watchdog location (section 3.2.4 of the netX DPM Interface Manual), the protocol stack
assumes that the host system has some sort of problem and shuts down all network connections. For
details on the watchdog function, refer to section 4.13 of the netX DPM Interface Manual.
Error Count (All Implementations)
This field holds the total number of errors detected since power-up, respectively after reset. The
protocol stack counts all sorts of errors in this field no matter if they were network related or caused
internally.
Error Log Indicator (All Implementations)
The error log indicator field holds the number of entries in the internal error log. If all entries are
read from the log, the field is set to zero. The error log indicator is not supported yet.
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Edition 3 – API:DeviceNet-Master#EN– 2009/01