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Car Park Configuration - Thresholds

There are four thresholds which define when the car park changes state. When numbers are increasing, the state is

defined as SPACES until the ALMOST FULL increasing threshold is reached, this state is maintained until the FULL

threshold is reached. When numbers are decreasing from FULL the state changes to ALMOST FULL when the

ALMOST FULL decreasing threshold is reached, then to SPACES when the decreasing SPACES threshold is

reached.

The FULL threshold can be set to any number up to the figure specified as CAPACITY, but it is advisable for it to be

lower to introduce hysteresis into the system so it does not hunt between two states. The ALMOST FULL increasing

threshold must be lower than the ALMOST FULL decreasing threshold also to introduce hysteresis. For obvious

reasons, the decreasing SPACES threshold must be the lowest of the four values.

You can select to display the threshold values as a percentage of the capacity, or as an absolute occupancy value.

This is done with the "Display Thresholds as %" checkbox.

The Overflow Threshold defines a percentage or absolute value which the car park can overflow by before a fault is

raised. This can be used to cope with car parks which have a high degree of internal circulating traffic.

The

Advanced button allows you to specify values which are only applicable to the Siemens Car Park Outstation. It

is capable of reporting car park occupancies based on exception, rather than by continuous polling.

Back to Basic Information

On to State Change Delays

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Multitech BL-Series Especificaciones Pagina 75