NOTE: These values are not saved and are only temporally set. If you have not set any new parameters, the old values
are active after the next reboot.
NOTE: The [Status]-LED indicates the states of the Modbus gateway:
LED Status
Description
Orange
•
Default settings are active.
•
No Modbus response.
•
30 s after powering the device.
Red
•
No Modbus primary connected.
Green
•
Modbus primary connected.
Orange-Blinking
•
Modbus request received.
Table 8.1 LED Status
8.3 Data Points
This section contains the Modbus TCP data points for Vertiv™ Liebert® DCDactive. Some data points are read-only, others
can be read and written. Please refer to Table 8.2 below .
NOTICE
Some values are only present if the corresponding sensor or actor is not connect to the Liebert® DCDactive. If a
value (e.g., a temperature) is not present, the corresponding Modbus registers read as 0xFFFF (hex).
NOTE: For teaching, only one sensor has to be connected. After teaching you must re-connect all other sensors.
Register Type
Address
Length
Description
Example
Unit
Data Type
Input Register
(4)
0
10
Identity including serial number
SDZ0006E22F123456789
-
2 char / reg
(sw)
Input Register
(4)
74
4
Operating Hours (years, days, hours,
minutes)
00 01 23 59
-
16 bit int
Input Register
(4)
82
2
Exhaust temperature
24,6
°C / K
32 bit float
(sw)
Input Register
(4)
86
2
Exhaust temperature 1
24,9
°C / K
32 bit float
(sw)
Input Register
(4)
90
2
Exhaust temperature 2
24,3
°C / K
32 bit float
(sw)
Input Register
(4)
94
2
Exhaust temperature 3
24,7
°C / K
32 bit float
(sw)
Input Register
(4)
98
2
Exhaust temperature 4
24,5
°C / K
32 bit float
(sw)
Input Register
(4)
102
2
Cabinet temperature
27,5
°C / K
32 bit float
(sw)
Input Register
(4)
106
2
Cabinet temperature 1
27,3
°C / K
32 bit float
(sw)
Table 8.2 Readable Data Points
8 MODBUS TCP/IP Specification
64
Vertiv™ Liebert® DCDactive Fan Module User Manual
