Data mapping of SmartWire
stations
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Number of SmartWire stations
The number of device types connected to the SmartWire is
given in register area 40143. Up to 16 SmartWire stations
can be connected for each gateway.
Setting the watchdog timer
The MODBUS RTU gateway has a built-in watchdog timer,
which monitors the data traffic within the MODBUS RTU
network. The watchdog timer monitors the interval between
two control data write operations. If the interval exceeds the
set value, the watchdog triggers an internal error state in the
SWIRE-GW-MB, which causes all control data of the
SmartWire station to be deleted (logic 0). The control data
status (logic 0) remains active until it is set by new write
signal.
The timeout value of the watchdog timers can be set with
the two register areas 44097 and 44098. Valid time values
are written to the least significant byte of the respective
register. The watchdog timer has a polling interval of 10 ms.
Timeout values of 10 to 2550 ms can be set.
The set time interval is temporarily written to register area
44097. In the event of a power failure (U
Gateway
) this data is
deleted. Any data written to the non-retentive memory area
(register area 44097) of the SWIRE-GW-MB are also copied
to register area 44098, where they are available as read
information.
Within register area 44098 the set time interval is retentively
stored to remain available after a power failure. The default
timeout value is 100 ms.
h
The register area for the number of SmartWire stations is
written once during initialization of the SWIRE-GW-MB.
Any failed SmartWire stations remain in this
representation and are removed only at the next startup of
the SWIRE-GW-MB.
Summary of Contents for SWIRE-GW-MB
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