
CP3 version 3003
68
Connection diagram for the above 2-floor 4-DPO example
MZC counting system with a split between standard and
reserved spaces
MZC counting systems in parking facilities have a recurring issue in not being able to detect the split
between standard and reserved spaces, typically used for handicap or VIP spaces. So, even if the signs
outside the car park are showing that spaces are available, the driver may find that there are no open
spaces in the required category.
The MZC system offers the option to manage the split between standard and reserved spaces. The reserved
spaces are implemented as a single space system where each space is equipped with a carpark sensor. The
precise reserved space availability information achieved is linked to the MZC, which can calculate the
available standard spaces from the total number of spaces. As a result, the displays outside the car park can
show how many spaces in each category are available. As a further benefit, the system makes it easier for
disabled people to find the handicap spaces because of the blue LED indicators. Reserved VIP spaces could
be indicated by amber LEDs.
We recommend that the installer uses an independent SBP2MCG324 CMCG for the counting system. This
only as a precaution against failure on the 3-wire bus. If the systems are kept electrically separated, failure
will affect only the afflicted circuit and not the entire system.