FAQ
– CMC III
Page
7
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24
Can the messages from several CMC III systems be sent using a single GSM/ISDN
unit?
From software version V3.15.00 onwards, up to six CMC III Processing Units may be
administered with just one GSM/ISDN unit. To this end, a GSM or ISDN unit is connected to
a CMC III PU. The other five CMC III PUs must communicate with the latter via the network.
The IP addresses of the other CMC III PUs are stored in the SMS configuration of the
CMC III PU with connected GSM/ISDN unit. At the same time, the IP address of the CMC III
PU with GSM/SDN unit must be defined as a trap receiver in the SNMP configuration of the
other CMC III PUs. In this way, the operator may specify in the alarm configuration of the
sensors which alarm messages are to be forwarded to the CMC III PU with GSM/ISDN unit
and sent as text messages.
Is the 3124.200 interface card for cooling units with Comfort controller compatible to
the CMC III?
No, the 3124.200 interface card for cooling units with Comfort controller (RTT I/O Unit)
cannot be connected to the CMC III. The digital inputs integrated as standard in a CMC III
Processing Unit / Processing Unit Compact can be used, however, to connect the RTT
cooling units. They are connected with the fault signal contacts of the climate control unit.
This avoids the need for an interface card.
Can I use a standard CMC III PU for installation in a LCP or in a RiMatrix S? Will
modifications need to be made to the firmware?
Generally speaking, a standard CMC III PU may be installed in a LCP or in a RiMatrix S in its
delivered state. However, in order to operate the systems correctly, a special patch file for
the respective LCP / RiMatrix S system must be copied onto the CMC III PU to make the
CMC III PU compatible with the system. The patch file can be requested from Rittal, and
should then be copied into the "Update" folder of the CMC III PU via FTP. A CMC III PU of a
LCP/RiMatrix S can be set back also
to a “default”-PU with a patch file.
Which SD cards and USB sticks can be used?
SD cards and USB sticks with up to 32 GB may be used.
Any USB stick currently on the market may be used, provided it has a type A connector. The
stick simply needs to be FAT formatted (including FAT32, etc.). USB 2.0 is supported.
A small proportion of the SD cards currently available on the market may not function
correctly with the CMC III. SD cards could differ in their electronic components even they are
from the same type because they may be part of different charges. This could be a reason,
why SD cards from the same type may not function correctly. Rittal recommends using SD
cards for industrial usage.
The SD card or USB stick used is monitored by the system to gauge the amount of memory
used. Once the memory is 80% full, a warning message will be given, and once it is 90% full,
an alarm message will appear.
Is it possible to connect a camera to the CMC III?
A network camera from "Axis
®
" may be integrated into the Web interface of the CMC III, but
this does not apply to a CMC III PU Compact. The camera must support Axis
®
's own API
