Data Sheet

Technical System Catalogue/Climate control
Monitoring
3 - 90
The CMC III monitoring system controls the climate inside the
enclosure. The user specifies limits for his equipment inside
the enclosure. These are fully automatically monitored by the
CMC III system. If a limit is exceeded, the CMC III can report
this to the service team via e-mail or SMS. Counteractive
action may also be initiated automatically.
The system may also be connected to the customer network
(via OPC/SNMP) to generate messages or values directly in
the control room system (SCADA/BMS/NMS).
The basic unit contains the principal sensors and may be
extended via the integral CAN bus.
The CMC III system is plug & play-ready, sensors are
detected automatically, and the Web user interface is easy to
use even with no programming knowledge.
The power supply is 24 V DC with a redundant design.
The system may also be supplied via the integral Power over
Ethernet (PoE).
The benefits of this system lie in its high level of reliability with
automatic, direct initiation of counteractive action. Ever more
complex applications are monitored by ever fewer person-
nel. Staff may therefore rely on automated solutions to assist
them in their duties and responsibilities.
Applications:
 Temperature monitoring
 Humidity monitoring
 Filter mat/fan monitoring via air flow sensor, analog (m/s)
with limits or speed control.
 Cold aisle housing/raised floor monitoring via differential
pressure sensor, analog (Pa) with limits.
 Air control/regulation
 Heating control/regulation
 CMC III switches climate control unit off automatically when
the enclosure door is open
 CMC III reports malfunctions in the event of a defective
climate control unit
 CMC III opens the enclosure doors automatically in the
event of a failure in the climate control system and uses the
ambient air
 CMC III switches off the system in the event of overheating
or shuts down a server in a controlled manner
Note:
For further information see Catalogue 33, page 768 – 777.
Enclosure monitoring system
CMC III
CAN bus