55
Operating and Maintenance Instructions – 6 Installation – "Getting Started"
Rittal Liquid Cooling Package Plus
6.7
Extended Basic CMC
options with network
connection
By connecting the Liquid Cooling Package Plus control unit (Basic CMC) to a
network, you are able to call up various measurements and warning or alarm
messages. These may then be further processed (e.g. via a Web browser,
SNMP, etc.). Furthermore, various values can be set over the network and then
sent to the control unit. If the control unit is connected to a network, the status
LED (Fig. 45, item 3) flashes when the unit is polled over the network via the
Ethernet interface.
The following values can be called up and processed over the network in the
browser window of the Basic CMC software:
- Actual temperature
(average value of the cold air temperature, as determined by the control unit,
which is used to regulate)
- Cooling output
(calculated thermal output which is removed from the server enclosure)
- Alarm and warning messages
(messages which give further information concerning the cause of a warning
or an alarm)
- Setpoint fan speed/control valve
(the fan speed set by the control unit for the fan modules as well as the posi-
tion of the control valve (open/closed))
- Actual temperature/fan speeds
(temperature level measured behind the heat exchanger (cold air temperatu-
re) as well as the actual fan speeds of the fans for each fan module)
- Flow/return temperature/flow volume
(the values of the flow and return temperatures as reported by the heat ex-
changer module as well as the flow volume in l/min)
The following values can be edited in the browser window of the Basic CMC
software and then sent to the control unit.
- Setpoint temperature
(from the control unit to regulate the setpoint used)
To connect the Liquid Cooling Package Plus to a network, connect one of the
network ports on the Liquid Cooling Package Plus control unit (Fig. 49, item 5)
to a network access port using a category 5 patch cable.
Fig. 48:
Control unit Liquid Cooling Package Plus (Basic CMC) – front
1
Button "C"
2
Status LED (alarms and warnings)
3
Status LED (network status)
4
IO connection
CMC - TC
!
C
Basic CMC
IOIOI
1
2
3
4
